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【简答题】
方程 cos(x+ π 6 )cos(x+ π 3 )-sin(x+ π 6 )sin(x+ π 3 )=1 在（0，π）上的是______．
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皮皮学刷刷变学霸
举一反三
【单选题】—I ’ m sorry I didn ’ t finish my paper on time. — ______ . I know you ’ re suffering a bad cold these days.
A.
It ’ s beyond me
B.
That all depends
C.
That’s right
D.
That ’ s all right
【单选题】There were dirty marks on her trousers ______ she had wiped her hands.
A.
where
B.
when
C.
that
D.
what
【判断题】为了控制每个ONU发送上行数据的时刻,从而确保各个ONU发送数据时,不会在分光器上产生冲突,OLT只需要在各个ONU启动注册时,精确测定各个ONU与OLT之间的距离,后续无须多次进行测距。( )
A.
正确
B.
错误
【简答题】His hands were dirty.--> His hands g_____ dirty.
【单选题】We may be able to _______ you in some way if you can not finish your work on time.
A.
resist
B.
insist
C.
assist
D.
disease
【单选题】There were dirty marks on her trousers _______ she had wiped her hands.
A.
when
B.
which
C.
where
D.
That
【单选题】Such apartments as she saw were either disgustingly dirty or______ dear, or both.
A.
exceedingly
B.
substantially
C.
unaccountably
D.
excessively
【简答题】There were dirty marks on her trousers __________she had wiped her hands. A．where B．which C．when D．that
【单选题】Remember ________ the book to the library when you finish _______ it. [ ]
A.
to return; to read
B.
returning; reading
C.
to return; reading
D.
returning; to read
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