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【单选题】
为预防旅游者患病,关于导游员的提醒工作错误的是
A.
提醒旅游者不要买街头小贩的食品
B.
提醒旅游者不要到卫生条件差的排挡用餐
C.
提醒旅游者根据天气情况及时增减衣服
D.
提醒旅游者多带药品
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举一反三
【单选题】【C20】
A.
be served
B.
serving
C.
serve
D.
have served
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A.
180
B.
90
C.
120
D.
150
【单选题】About four meters long, the room a small reception hall.
A.
served for
B.
was served for
C.
served as
D.
was served as
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A.
served wide
B.
can be served wider
C.
is served wider
D.
is widely served
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A.
joined
B.
took part
C.
served
D.
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A.
B.
【多选题】中性醋酸铅能沉淀分子中具有以下哪些基团的化合物
A.
羰基
B.
醛基
C.
亚甲二氧基
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羧基
E.
邻二酚羟基
【简答题】A.Food served in cans is expensive. B.The number of dishes served in cans is large C.Employees in cans get dishes from the counter by themselves. D.There are no waiters or waitresses in 'a...
【单选题】— Are they about to have dinner? — Yes, it____ in the dining room. [     ]
A.
is being served
B.
is served
C.
is serving
D.
serves
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A.
is serving
B.
is served
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serves
D.
served
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