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【简答题】
可获得的;可利用的;现成的 a. (a--)
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【单选题】—Would you like to go shopping with me this afternoon? —I'd like to, but I'm afraid I ______. I have to write to my parents. [ ]
A.
can't
B.
mustn't
C.
needn't
D.
may not
【单选题】— Would you like _______ shopping with me? —I’d like to. But I’m busy _______ my homework.
A.
to go; to do
B.
to go; doing
C.
going; to do
D.
going; doing
【单选题】The word 'it' in Line 4, Para. 1 refers to
A.
the scale of the pageants in the open air.
B.
the production of costumes for all the performers.
C.
the limited allocation of funds for the performance.
D.
the creative power of the performance planners.
【单选题】How do you interpret the sentence 'her airplane Electra is not pressurized' (Para. 4)?
A.
The plane exerts pressure on the pilot.
B.
The plane is not installed with a piece of equipment to pump in outside air.
C.
The plane cannot keep stable in the storms because the air pressure is not high enough.
D.
The pilot does not feel comfortable under pressure.
【单选题】What does the author mean by 'But my son is eleven years old now' (Line 4, Para. 1)?
A.
He is a bit too young to go out alone.
B.
He has reached the legal age for riding a bicycle.
C.
He can't protect himself from road hazards.
D.
He is old enough to be given some freedom now.
【单选题】下列关于Tc细胞杀伤靶细胞的叙述正确的是
A.
Tc细胞无须与靶细胞接触
B.
靶细胞被溶解时，Tc细胞同时受损
C.
效应Tc细胞具有特异性杀伤作用
D.
穿孔素诱导靶细胞凋亡
E.
一个Tc细胞只能杀伤一个靶细胞
【单选题】关于MHC限制性，下列叙述不正确的是
A.
LAK细胞杀伤肿瘤细胞时受MHC限制
B.
TH细胞与APC间作用受MHC限制
C.
Tc杀伤靶细胞时受MHC限制
D.
TH细胞与B细胞间相互作用时受MHC限制
E.
巨噬细胞与TH细胞间作用时受MHC限制
【单选题】Now listen to Para. 4: Para.4.mp4 What is the main idea?
A.
At this point, you feel that you are coping fine alone, so you do not try to ask for help.
B.
Four types of defense mechanisms could be employed to help you adapt to a new culture.
C.
You'd devise some defense mechanisms to protect yourself from the effects of culture shock.
【单选题】----Would you like to go to the park with me? --- ________
A.
Yes, I’d like to
B.
Yes, I like it
C.
No, I’m not
D.
Yes, I love it
【单选题】What does the sentence 'The reverse now appears to be true'(Line 3, Para. 7)mean?
A.
Now the number of newly arrived illegal immigrants outnumbers those legally entering the U.S.
B.
Now the number of newly arrived legal immigrants outnumbers those illegally entering the U.S.
C.
The past statistics are not true.
D.
Now there are more illegal immigrants than those legal ones in the U. S.
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