... coi thể tích thay đổi không đáng kể khi xảy ra phản ứng)
đáp ánđề số 2
Đápán chấm
Câu1: ( 4 điểm )
1. Đápán ®óng: C ( 1 ®iÓm)
Sai: A,B,D ( 1 ®iÓm )
2. Đápán đúng: B ( 1 điểm )
Sai: A,C,D ... phải có một khí có M < 45, khí còn lại có M > 45. Vì N
2
O có
M = 44 (<45) nên M
X
> 45.
Trong các khí có thể được sinh ra do kim loại tác dụng với HNO
3
, chỉ có khí NO
2
có M ... phản ứng .
a/ HÃy viết các phơng trình phản ứng xẩy ra .
b/ HÃy tính phần thể tích của các Ô xít các bon trong hỗn hợp đầu .
đề 13 Hớng dẫn chấm
Đềthi chọn đội tuyền dự thi học sinh giỏi tỉnh...
... techniques.
This not-for-profit organization, administered by the Department of Commerce, demonstrates how to
reduce waste, or "fat," in the manufacturing process. This includes things ...
(D) Consult the employee handbook
sinhvienit.net
TOEIC Test 1, Questions
Photocopiable 31
â www.english-test.net
buying this paper from you at $100 a case, so shouldn't six ... cooperation in this matter. If you have any questions, please contact me at extension 254 or
the assistant HR director, Gladys Haynes, at extension 256.
(155) What is the main purpose of this memo?...
... Hiện tượng tán sắc ánh sáng chứng tỏ ánh sáng có nhiều thành phần phức tạp
B. Hiện tượng giao thoa ánh sáng chứng tỏ ánh sáng có tính chất sóng
C. Hiện tượng quang điện chứng tỏ ánh sáng có tính ... SAI:
A. Vận tốc của ánh sáng đơn sắc phụ thuộc vào môi trường truyền.
B. Ánh sáng đơn sắc là ánh sáng có một bước sóng xác định .
C. Ánh sáng đơn sắc là ánh sáng không bị tán sắc qua lăng kính.
D. ... truyền ánh sáng màu đỏ lớn hơn vận tốc truyền ánh sáng màu
tím.
Câu 13: Thực hiện giao thoa ánh sáng bằng khệ Iâng (Young) với ánh sáng đơn sắc có bước sóng λ. Người ta đo được
khoảng cách giữa...
... answer sheet. Do not write your answers in the test book.
PART I
Directions : For each question in this part, you will hear four statements about a
picture in your test book. When you hear the statements, ... of the company web site
(D) Operating hours for the holidays
51. What did the woman receive this
morning?
(A) An order
(B) An e-mail
(C) A phone call
(D) A fax
52. What will take place ... Sales have been very slow.
(D) Some of the facilities are old.
55. What does the man plan to do this
evening?
(A) Conduct a training seminar
(B) Prepare for a meeting
(C) Answer some e-mails...
...
Questions 71 through 73 refer to the
following introduction.
71. Who is the audience?
(A) Clothing store clerks
(B) A board directors
(C) Restaurant owners
(D) Fashion designers
72. According ... graphing historical trends
(D) By testing materials
73. What feature of the new executive
clothing does the speaker emphasize?
(A) It is easy to care for.
(B) It is convenient to order.
(C) ... sheet. Do not write
your answers in the test book.
PART I
Directions : For each question in this part, you
will hear four statements about a picture in your
test book. When you hear the...
... sheet. Do not write
your answers in the test book.
PART I
Directions : For each question in this part, you
will hear four statements about a picture in your
test book. When you hear the ... there before.
(C) He knows the chef.
(D) He read a review of it.
49. What will the speakers do this
afternoon?
(A) Telephone some designers
(B) Plan a dinner
(C) Meet a client
(D) Make travel ... merchandise
(C) Greet customers
(D) Help a new employee
73. What does the speaker say he will do
this morning?
(A) Hire a server
(B) Enter some information
(C) Revise a manual
(D) Give a tour...
... information
78. When will the customer probably receive
his report?
(A) This morning
(B) This afternoon
(C) This evening
(D) Tomorrow
79. What did the speaker notice?
(A) A bill was ... registration deadline.
82. What is the topic of this afternoon
keynote speech?
(A) Staff recruitment.
(B) Modern techniques
(C) Business ethics.
(D) Workplace safety.
Questions 83 through ... sheet. Do not write
your answers in the test book.
PART I
Directions : For each question in this part, you
will hear four statements about a picture in your
test book. When you hear the...
... of employee opinions
(C) A new hiring policy
(D) A change in software
81. What will happen this Thursday?
(A) An office will be reopened.
(B) Computers will be delivered.
(C) Employees ...
(C) It has added new locations.
(D) It has hired more staff.
76. Who will receive a discount this
month?
(A) Customers of new flights
(B) Repeat clients
(C) Current employees
(D) Contest ... sheet. Do not write
your answers in the test book.
PART I
Directions : For each question in this part, you
will hear four statements about a picture in your
test book. When you hear the...
...
(C) In an office
(D) On the street
42. When will does the renovation start?
(A) This morning
(B) This afternoon
(C) Tomorrow morning
(D) Tomorrow afternoon
43. What will the man do ...
Questions 71 through 73 refer to the
following recorded report.
71. Why is the good news this morning?
(A) Recent road construction has ended
(B) Larger buses have been introduced.
(C) ... sheet. Do not write
your answers in the test book.
PART I
Directions : For each question in this part, you
will hear four statements about a picture in your
test book. When you hear the...
... sheet. Do not write
your answers in the test book.
PART I
Directions : For each question in this part, you
will hear four statements about a picture in your
test book. When you hear the...
... Migration
(D) Acquiring research funds
73. When will Doctor Bergman give her
talk?
(A) This morning
(B) This afternoon
(C) Tomorrow morning
(D) Tomorrow afternoon
Questions 74 through 76 ... sheet. Do not write
your answers in the test book.
PART I
Directions : For each question in this part, you
will hear four statements about a picture in your
test book. When you hear the...
... announcement, what will
begin this afternoon?
(A) Hiring session
(B) Staff meetings
(C) Budget cuts
(D) Maintenance work
82. What are listeners asked to do this
afternoon?
(A) Talk to ... following
conversation.
53. When does Mr. Greenplatt want to meet
with the woman?
(A) This afternoon
(B) This evening
(C) At the end of the week
(D) Next week
54. What does Mr. Greenplatt ... answer sheet. Do not write your answers in the test book.
PART I
Directions : For each question in this part, you will hear four statements about a
picture in your test book. When you hear the statements,...