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【多选题】
使用产品演示法应注意的问题包括( )
A.
选择恰当的时机
B.
语言温和、婉转
C.
突出重点
D.
鼓励顾客参与
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举一反三
【单选题】He is very busy. I don’t know if he _____ or not tomorrow.
A.
come
B.
comes
C.
will come
D.
is coming
【简答题】Robots are less popular in Britain today partly because ________.
【判断题】在溶液中含有多种离子时,可与同一种试剂作用,在此溶液中逐滴加入该沉淀试剂,则沉淀平衡常数越小的难溶电解质,一定先析出沉淀。
A.
正确
B.
错误
【简答题】完形填空。 Peter is a waiter. He 1 in a restaurant. He is very busy, so he gets 2 very late every night. He does not stay at home 3 the day. Peter has a parrot (鹨鹉) at home. Its name is Dora. It is a beaut...
【单选题】Although he is very busy every day as manager of the company, he spends as much time as he can ___ with his family.
A.
stays
B.
stay
C.
to stay
D.
staying
【简答题】A.Mostly B.Totally C.Nearly D.Partly
【简答题】平面平行力系只有 ____ ,只能求解 ____ 未知量。 [填空(1)] [填空(2)]A. 两个独立的平衡方程B. 两个
【单选题】船用海水蒸馏装置以沸腾式取代闪发式的主要原因是()。
A.
结垢少
B.
经济性更好
C.
产水含盐量少
D.
管理更简单
【简答题】A.She knows he is very busy. B.He's already helped her enough. C.He is incompetent to help her. D.She doesn't need any help.
【单选题】船用海水蒸馏装置以沸腾式取代闪发式的主要原因是 。
A.
结垢少
B.
经济性好
C.
产水含盐量少
D.
管理更简单
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