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【判断题】
操作作业人员上岗前应熟练掌握识别安全标志，以减少和杜绝意外安全事故。A.
正确
B.
错误
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举一反三
【简答题】根据句意和首字母提示完成单词。 1. My grandfather's d______ made me very sad. 2. My sister is very careful. She made few m______ in her homework. 3. He was b______ in a poor family. 4. His m______ encourage me all th...
【单选题】My sister is very interested in singing, and ______.
A.
so is my brother
B.
so am I, too
C.
he is so
【单选题】—My sister is very upset today. —It’s your fault .You the bad news to her yesterday.
A.
should tell
B.
should have told
C.
shouldn’t have told
D.
must tell
【单选题】My sister is very _________ and she never asks anyone for help.
A.
sad
B.
strict
C.
shy
D.
cruel
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