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【多选题】
以下关于握手顺序,说法正确的是()。
A.
男女之间,女方要等男方先伸手
B.
宾主之间,主人客人先伸手
C.
长辈与晚辈之间,晚辈要等长辈先伸手
D.
上下级之间,下级要等上级先伸手
E.
上下级之间,上级要等下级先伸手
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【判断题】暗管排水系统里不包括集水管。
A.
正确
B.
错误
【单选题】After _____ the league, he often helps others. [     ]
A.
joining in
B.
joining
C.
joined
D.
joined in
【单选题】Thank you for _____________ CCTV’s Around The World show.
A.
join
B.
is joining
C.
to join
D.
joining
【多选题】Which are the roles for the UNICEF Ambassador of Goodwill?
A.
He makes public appearances and talks.
B.
He pays visits to troubled regions.
C.
He takes use of his political access to advocate UNICEF causes.
D.
He attracts attention from celebrities.
【单选题】The following are job benefits by joining Toastmasters EXCEPT______.
A.
becoming familiar with various means of communication
B.
learning how to deliver messages in an organized way
C.
becoming aware of audience expectations
D.
learning how to get along with friends
【简答题】社会保障制度产生和发展分几个阶段?各阶段的主要标志是什么?
【单选题】当两束相干光在空间相遇产生相干叠加时,干涉相长的条件是[ ]
A.
光程差等于波长的整数倍
B.
光程差等于半个波长的奇数倍
C.
光程差等于四分之一个波长的奇数倍
【单选题】Thank you for _____ the school play. [     ]
A.
joining
B.
to join
C.
joins
D.
is joining
【单选题】风景区保护培育规划的分级保护时,哪一个属于严格限制建设范围区?
A.
特级保护区
B.
一级保护区
C.
二级保护区
D.
三级保护区
【单选题】 分离溶液中的各种蛋白质可采用
A.
水提醇沉法
B.
醇提水沉法
C.
盐析法
D.
透析法
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