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【单选题】
下列编码只具有检错功能的是（）。A.
群计数码
B.
垂直校验群计数码
C.
海上移动业务识别码
D.
以上均是
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皮皮学刷刷变学霸
举一反三
【单选题】Why did the doctor in the story write a note to the lady?
A.
To answer her letter.
B.
To reject her inviiation.
C.
To accept her invitation.
D.
To have dinner at her house.
【单选题】—Jenny, did you see the manager ______? —If I had been there 5 minutes earlier, I would have met him．
A.
itself
B.
him
C.
herself
D.
himself
【单选题】I had no idea he was there, I met him ______.
A.
by chance
B.
with interest
C.
in secret
D.
on purpose
【简答题】This is the reverse of B2C, it is a consumer to . So the consumer provides a good or some service to the company.
【单选题】肺换气中，造成临床上缺02比C02潴留更为常见的主要原因是
A.
O2分压差比CO2大
B.
C02的溶解度比02大
C.
C02分子量比O2大
D.
C02通过呼吸膜的距离比02小
E.
C02的扩散速率比02大
【单选题】—_____ were you late for the meeting this morning? —Because I met a friend and had a talk with him. [ ]
A.
When
B.
Why
C.
What
D.
Where
【判断题】This is our company brochure, and this is the project plan, please take a look at it first.
A.
正确
B.
错误
【单选题】Why could Adam Smith be the last economist as the face on a bank note?
A.
No economic thinker could be more honorable.
B.
Cash is very versatile and enduring.
C.
We will not need money in the near future.
D.
Electronic money will replace cash in the future.
【简答题】Why did Edward Wright write a suicide note?
【单选题】Why ________ a note on his desk?
A.
not you leave
B.
not to leave
C.
left
D.
not leave
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