皮皮学，免费搜题
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搜题
【单选题】
预应力钢筋可采用( )A.
HRB335
B.
HRB400
C.
RRB400
D.
钢绞线
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】-–Where is your sister? --She _________the library
A.
has been to
B.
is going to
C.
has gone to
【单选题】7 接受《内燃、电力机车检修工作要求及检查办法》文件对规检查的机务段，由检修 工作责任，造成职工死亡事故时。()
A.
(A)不参加本次对规检查
B.
(B)本次对规成绩降级排名
C.
C、超过及格成绩时按及格记
D.
(D)按失格处理
【单选题】—Has your sister visited Disneyland _____? —Yes, she has visited it ________.
A.
yet, yet
B.
already, already
C.
already, yet
D.
yet, already
【单选题】Has your sister returned____
A.
om school?
B.
s, he ____for more than half an hour.
C.
home; has been back
D.
home; has come back
E.
to home; has come
F.
to home; has been back
【单选题】－Look, your sister is playing the piano over there. －She ______ be my sister. She has gone to America.
A.
mustn’t
B.
can’t
C.
shouldn’t
D.
may not
【简答题】在装配图中,同一零件在各视图上剖面线的( )和( )必须一致。
相关题目：
【单选题】-–Where is your sister? --She _________the library
A.
has been to
B.
is going to
C.
has gone to