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【多选题】
平屋顶的隔热构造可采用( )等方式。A.
通风隔热
B.
蓄水隔热
C.
植被隔热
D.
反射隔热
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于乳剂中乳化膜的叙述错误的是
A.
吐温类形成的乳化膜对水相界面张力降低得多
B.
阿拉伯胶作为乳化剂，形成的是单分子层乳化膜
C.
硅皂土等作为乳化剂，形成的是固体微粒乳化膜
D.
乳化膜可阻止乳滴合并
【单选题】Among the left handers, ______.
A.
few are men
B.
most of them are women
C.
half of them are men
D.
two thirds are men
【简答题】A．Most of them are boarding schools. B．None of them take day-pupils. C．Pupils can be admitted without any exam. D．Most of them have their own preparatory schools.
【单选题】How about the machines used in the factories?
A.
Most of them are made in China.
B.
Most of them are imported from abroad.
C.
They made most of them by themselves.
D.
They made all of them by themselves.
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