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【简答题】
构成物质的微粒有分子、原子和离子．（各举一例说明）有些物质是由分子构成的，如______；有些物质由原子直接构成的，如______；有些物质是由离子构成的，如______．
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【单选题】---I' m sorry to have kept you waiting. ---Oh, not at all. I___here for only a few minutes.
A.
have been
B.
had been
C.
have come
D.
will be
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【判断题】氧 - 乙炔气割大厚度钢板时 , 应采用大号割炬和割嘴 , 以获得大的火焰能率。
A.
正确
B.
错误
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【单选题】下列哪个选项可以记账
A.
未被审核的凭证
B.
上月未结账
C.
试算不平衡
D.
本月有未记录的业务
查看完整题目与答案
【单选题】— I ’ m sorry to have troubled you. — _____.
A.
Not to mention
B.
Don ’ t mention it
C.
All right
D.
With pleasure
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【判断题】整车、零担运价，一次托运货物的计费重量达3吨以上的，按整车运价计费，不足3吨的按零担计费；普通货物分等运价，《汽车货物运输规则》对普通货物分为三等。
A.
正确
B.
错误
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【单选题】听力原文：M: I am sorry. I have to leave a bit early. I have an important appointment with my doctor. W: That's fine with me. But you'd better tell the manager. Q: What is the possible relationship between...
A.
Teacher and student.
B.
Doctor and patient.
C.
Coworkers in an office.
D.
Manager and employee.
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【单选题】---I ‟ m sorry to have kept you waiting long. ---Never mind. I ____ here for only a few minutes.
A.
have been
B.
have come
C.
have arrived
D.
waited
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【单选题】I ’ m sorry to have to say this, ____ you forgot to turn off the lights when you left the room last night.
A.
and
B.
but
C.
so
D.
because
查看完整题目与答案
【判断题】氧-乙炔气割大厚度钢板时,应采用大号割炬和割嘴,以获得大的火焰能率。
A.
正确
B.
错误
查看完整题目与答案
【单选题】整车、零担运价，一次托运货物的计费重量达3吨以上的，按整车运价计费，不足3吨的按零担计费；普通货物分等运价，《汽车货物运输规则》对普通货物分为三等。( )
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】---I' m sorry to have kept you waiting. ---Oh, not at all. I___here for only a few minutes.
A.
have been
B.
had been
C.
have come
D.
will be
查看完整题目与答案
【判断题】氧 - 乙炔气割大厚度钢板时 , 应采用大号割炬和割嘴 , 以获得大的火焰能率。
A.
正确
B.
错误
查看完整题目与答案
【单选题】下列哪个选项可以记账
A.
未被审核的凭证
B.
上月未结账
C.
试算不平衡
D.
本月有未记录的业务
查看完整题目与答案
【单选题】— I ’ m sorry to have troubled you. — _____.
A.
Not to mention
B.
Don ’ t mention it
C.
All right
D.
With pleasure
查看完整题目与答案
【判断题】整车、零担运价，一次托运货物的计费重量达3吨以上的，按整车运价计费，不足3吨的按零担计费；普通货物分等运价，《汽车货物运输规则》对普通货物分为三等。
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：M: I am sorry. I have to leave a bit early. I have an important appointment with my doctor. W: That's fine with me. But you'd better tell the manager. Q: What is the possible relationship between...
A.
Teacher and student.
B.
Doctor and patient.
C.
Coworkers in an office.
D.
Manager and employee.
查看完整题目与答案
【单选题】---I ‟ m sorry to have kept you waiting long. ---Never mind. I ____ here for only a few minutes.
A.
have been
B.
have come
C.
have arrived
D.
waited
查看完整题目与答案
【单选题】I ’ m sorry to have to say this, ____ you forgot to turn off the lights when you left the room last night.
A.
and
B.
but
C.
so
D.
because
查看完整题目与答案
【判断题】氧-乙炔气割大厚度钢板时,应采用大号割炬和割嘴,以获得大的火焰能率。
A.
正确
B.
错误
查看完整题目与答案
【单选题】整车、零担运价，一次托运货物的计费重量达3吨以上的，按整车运价计费，不足3吨的按零担计费；普通货物分等运价，《汽车货物运输规则》对普通货物分为三等。( )
A.
正确
B.
错误
查看完整题目与答案