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【单选题】
组成结缔组织的主要成分有A.
细胞和纤维
B.
细胞和基质
C.
细胞、基质和纤维
D.
纤维和基质
E.
细胞和胶原
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举一反三
【单选题】Have you kept in _______ with any of your friends from college?
A.
compare
B.
respond
C.
contact
D.
estimate
【简答题】(U1 Listening)Task 2 Mr. Black is registering at the hospital in person. Listen to the conversation and fill in the blanks with what you hear. Mr. Black: Good morning. Nurse: Good morning. Sorry to ha...
【简答题】当 时, 恰为函数 的全微分.
【单选题】Sorry to have kept you( ), but Mr. Drake is not in right now.
A.
wait
B.
to wait
C.
waiting
D.
waited
【单选题】I'm sorry ____ so long, I forgot to tell you in advance where I had put my key.
A.
to keep you wait
B.
to keep you waiting
C.
to keep you waited
D.
to have kept you waiting
【简答题】工业机器人可与外部设备集成为一个功能单元,例如 , , 等。
【单选题】Have you kept in contact _____your friends from high school?
A.
in
B.
on
C.
with
D.
down
【简答题】Mr. Black is registering at the hospital in person. Listen to the conversation and fill in the blanks with what you hear. Task 2.mp3: Mr. Black: Good morning. Nurse: Good morning. Sorry to have kept y...
【简答题】 Angels have nicknames to show their personalities and their goals for the future. 都市天使成员通过自己的绰号来 ( ) ,表明自己将来的目标。
【单选题】--Do you know Professor Yu, an outstanding expert in computers? --Exactly. But I _____ with him for about five years. A. have been in touch B. have lost touch C. have been out of touch D. ...
A.
B.
C.
D.
D
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