皮皮学，免费搜题
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搜题
【单选题】
种系发育过程中及抗原刺激机体后出现最早的免疫球蛋白是A.
IgD
B.
IgM
C.
IgG
D.
IgA
E.
IgE
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】No parking means ______. [ ]
A.
you can't park your car here
B.
nobody parks his/her car here
C.
there is no parking lot here
D.
you needn't park your car here
【单选题】When parking your car, you are advised to park it——————
A.
in a well-lit area
B.
near your house
C.
in a public parking lot
D.
in your own garage
【单选题】--- Excuse me, sir? --- ___________? --- You’re not meant to park your car in front of the main entrance. --- Oh, sorry. I don’t know.
A.
Well, who are you
B.
Yes, what is it
C.
Me, are you talking to me
D.
What’s the matter with you
【单选题】According to the passage, when you park your car in unfamiliar places, you' d better ______.
A.
put your luggage in the trunk
B.
leave little room for passengers
C.
not give any passenger a lift
D.
cover the passenger area with your luggage
【多选题】已知一复数，有确定的模而辐角不定，则：
A.
此复数不存在
B.
此复数为1
C.
这样的复数有无穷多
D.
此复数为0
E.
此复数为
F.
这样的复数存在
G.
此复数为
【单选题】______ you park your car in the marked parking lot, you will be fined.
A.
Until
B.
If not
C.
Provided that
D.
Unless
【简答题】You need to drive away quickly after putting your money in the car park machine.
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