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【单选题】
在MAG焊时,利用Ar+H2混合气体中H2的还原性,焊接镍及其合金时可以抑制和消除焊缝中的( )气孔。
A.
H2
B.
N2
C.
CO
D.
O2
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【单选题】消化道间置手术至少要编码的个数是()
A.
二个
B.
三个
C.
四个
D.
五个
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【单选题】Most parents are so grateful to have a healthy baby that the sex of the child is a ___ consideration.
A.
significant
B.
sensitive
C.
sensible
D.
secondary
【单选题】The child was so ingenuous that even when she knocked the television off its stand so that it was irreparably damaged, her parents thought her to be charming.
A.
intelligent
B.
ingenious
C.
adroit
D.
naive
【单选题】We can't believe that _________ a little child knows __________ many things. [     ]
A.
so, so
B.
so, such
C.
such, so
D.
such, such
【单选题】—John saw a three-year-old child walking alone in a shopping mall , so he took the child home immediately and called the police . —But he have waited with the child until the parents returned .
A.
shouldn’t
B.
could
C.
would
D.
might
【单选题】居古代”四大书院“之首的白鹿洞书院是在( )。
A.
湖南
B.
湖北
C.
江西
D.
江苏
【单选题】居古代“四大书院”之首的白鹿洞书院是在____?(出题:央视《中国地名大会》节目组)
A.
江西
B.
河南
C.
湖北
D.
河北
【单选题】It’s said ________ a little child does ________ much homework every day.
A.
such; such
B.
so; such
C.
so; so
D.
such; so
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