皮皮学，免费搜题
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【单选题】
标准中明确规定,五星级饭店的宴会单间或小宴会厅提供宴会服务,效果良好,数量应有()。A.
2个以上
B.
3个以上
C.
4个以上
D.
5个以上
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于现场总线,以下说法中错误的是_____。
A.
通过现场总线,只需一根通信电缆就可将分散的现场设备连接起来,完成对所有现场设备的监控;
B.
由于各种原因,目前为止并没有真正形成国际范围内的统一标准,因此现场总线的种类很多;
C.
CAN和ProfiBus是目前在船舶机舱应用较多的现场总线;
D.
RS-232、RS422和RS-485是常用的船用现场总线。
【单选题】She has devoted all her life_________ taking care of homeless people.
A.
to
B.
at
C.
on
D.
in
【单选题】All her time __________ experiments, so she has no time for films.
A.
devoted to do
B.
devoted to doing
C.
is devoting to doing
D.
is devoted to doing
【简答题】佛手的功效是
【单选题】All her time ___ experiments, she has no time for films. [ ]
A.
devoted to do
B.
devoted to doing
C.
devoting to working
D.
is devoted to doing
【单选题】The determined mother has devoted all she has to ________ her son out of trouble.
A.
helping
B.
help
C.
have helped
D.
having helped
【单选题】关于农民的能力与农业推广，下列说法不正确的是（ ）
A.
发展合作组织要注意农民能力的搭配
B.
让善于沟通、协调及联络的农民在合作组织中负责技术工作
C.
确定推广项目和内容时要考虑农民的实际接受能力
D.
要加强对农民的教育引导，强化对农民的能力训练
【单选题】All her time _______ experiments, she has no time for films.
A.
devoted to do
B.
devoted to doing
C.
devoting to doing
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