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【单选题】
模拟焊接热影响区CCT图主要是预测哪个区域的组织和性能。A.
焊缝
B.
熔合区附近
C.
粗晶区
D.
不完全重结晶区
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反馈参考答案：
举一反三
【简答题】When you take a taxi, you must ask for a ________（收据）
【单选题】强度级别为MU10、外观质量为一等品的混凝土多孔砖,其标记为( )。
A.
CPC MU10 B JC943；B、CPB MU10 B JC943-2004；
B.
CPC MU10 C JC943；D、CPB MU10 C JC943-2004。
【单选题】The old man is quite weak after the accident, so he _____ . [ ]
A.
must take care of
B.
must be take care of
C.
must look after
D.
must be looked after
【单选题】Which of the following best summarizes the text?
A.
As the UN hesitates, the poor take action.
B.
Progress in environmental protection has been made since the Rio Summit.
C.
Climate changes can no longer be neglected.
D.
The decline of earth's life-support systems has been halted.
【单选题】强度级别为MU10、外观质量为一等品的混凝土多孔砖，其标记为（）
A.
CPC MU10 BJ C943
B.
CPB MU10 BJ C943-2004
C.
CPC MU10 CJ C943
D.
CPB MU10 CJ C943-2004
【单选题】The old man was quite weak after the accident. So he _____. [ ]
A.
must be take care of
B.
must take care of
C.
must be looked after
D.
must look after
【单选题】---Must I take this medicine, Mom? It ________ so terrible. ---Yes, you must take it for another three days.
A.
is tasting
B.
is tasted
C.
tastes
D.
has tasted
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