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【单选题】
学龄前儿童最常采用的饮食制度是( )A.
三餐制
B.
三餐一点制
C.
三餐两点制
D.
三餐三点制
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反馈参考答案：
举一反三
【单选题】The class ( )( )( ) over, we had a ( )( )( )discussion.
A.
been ... heat
B.
being ... heated
C.
is ... heating
D.
be ... heated
【简答题】用板框过滤机在恒压下过滤悬浮液。若滤饼不可压缩，且过滤介质阻力可忽略不计。 (1)当其他条件不变，过滤面积加倍，则获得的滤液量为原来的______倍。 (2)当其他条件不变，过滤时间减半，则获得的滤液量为原来的______倍。 (3)当其他条件不变，过滤压强差加倍，则获得的滤液量为原来的______倍。
【简答题】I phoned my first teacher timeand again when I heard that he was ill, yet couldn’t . A. getthrough B. get along C. getover D. get hold of
【单选题】The children talked so loudly at dinner table that I had to struggle ____.
A.
to be heard
B.
to have heard
C.
hearing
D.
being heard
【简答题】I was sleeping soundly last night when I was awakened by someone’s groans（呻吟）.I listened , and heard it was from Sam，a student from Africa. I really wanted to go on sleeping, as I had insomnia（失眠）and ...
【单选题】Henry Durant put forward the idea because he
A.
had once fought in a war in Italy.
B.
had been wounded in a war.
C.
had assisted in treating the wounded.
D.
had seen the casualties and cruelties of war.
【单选题】听力原文：M：You didn't go to the lecture last night either, did you? W：No，I had a severe headache． Q：What do we learn from this conversation? (13)
A.
The man went to the lecture, but the woman didn't.
B.
The woman went to the lecture, but the man didn't.
C.
Neither of speakers went to the lecture.
D.
Both speakers went to the lecture.
【单选题】忽略过滤介质阻力,板框过滤机恒压过滤,滤饼不可压缩。当压差增大一倍,则同样过滤时间里所得滤液量将( )。
A.
增大至原来的 1.414 倍；
B.
增大至原来的 2 倍；
C.
增大至原来的 4 倍；
D.
不变
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