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【多选题】
在一般位置平面内，不包含下列哪种直线：A.
一般位置直线；
B.
侧；
C.
侧垂线；
D.
水平线；
E.
铅垂线；
F.
正平线；
G.
正垂线；
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反馈参考答案：
举一反三
【简答题】电离层由围绕地球的处于不同高度的3个导电层组成的,这3个导电层分别 称为( )、( )、( )。
【单选题】The teacher spoke so fast that it was hard for the students to ______ what he was saying.
A.
take in
B.
take off
C.
take on
D.
take after
【单选题】The teacher spoke so loudly as __ clearly in the crowded meeting hall.
A.
to hear
B.
to be heard
C.
to listen
D.
to be listened
【单选题】—What’s the matter? You looked unhappy. —Well, the teacher spoke so quickly and I can __________ understand it.
A.
hardly
B.
nearly
C.
almost
D.
usually
【单选题】The teacher spoke so fast that it was hard for the students to what he was saying.
A.
take in
B.
take out
C.
take up
D.
take over
【单选题】The teacher spoke so loudly ______ the students could hear him clearly.
A.
that
B.
so
C.
so that
D.
in order to
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