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【单选题】
563÷7的余数是（ ）A.
商8余3
B.
商80余0
C.
商80余3
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反馈参考答案：
举一反三
【单选题】The college student lost his life trying to save the drowning child, ________ he will always be remembered.
A.
in which
B.
about which
C.
by which
D.
for which
【多选题】老师准备家访时,应该注意以下拜访礼仪( )。
A.
事先预约,准时到达
B.
按响门铃前,整理妆容
C.
注意落座位置,寒暄示意
D.
吃茶点不必客气
E.
完成家访工作后,巧妙地打住,适时离开
【单选题】We are trying to do _____ it takes to save those injured in the accident. [ ]
A.
whichever
B.
however
C.
whatever
D.
whoever
【单选题】已知某酶的Km 值为0.05mol·L-1 ,要使此酶所催化的反应速度达到最大反应速度的80%,底物的浓度应为多少
A.
0.2 mol·L-1
B.
0.4 mol·L-1
C.
0.1 mol·L-1
D.
0.05 mol·L-1
E.
无法确定
【单选题】Newspapers are trying to save themselves by doing the following except______.
A.
shifting the mix of the reports towards lifestyle. and entertainment
B.
planning more subjects relevant to daily lives and politics
C.
creating new programs on-and offline
D.
investing in daily papers free of charge
【单选题】Green organizations are trying to save rain forests that have been _____ by farmers.
A.
created
B.
ruined
C.
threatened
D.
protected
【简答题】拜访的礼仪应注意哪些方面？
【简答题】拜访亲友应注意哪些礼仪？
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