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【多选题】
常用的消毒剂75%的乙醇可用于( )消毒。A.
皮肤
B.
设备
C.
容器
D.
空气
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皮皮学刷刷变学霸
举一反三
【单选题】______ made him unhappiest of all was ______ he had nowhere to unburden himself.
A.
What; what
B.
What; that
C.
That; what
D.
That; because
【单选题】一内、外半径分別カr1和r2。的常物性长圆桶壁.有均勺内热源 φ ( φ >0),其内、外表面維持相同的均匀恒定温度tw,圆筒壁中发生一维稳态导热,则在关于壁内热流密度|q|随r变化的下列说话中,正确的是
A.
|q|随r的増大而減小
B.
|q|随r的増大先増大,后减小
C.
|q|为常数
D.
|q|随r的増大先減小，后増大
【单选题】What was unusual about the way the woman looked at him7
A.
It made him feel self-conscious.
B.
She was happy to stare at him.
C.
She seemed to know him well.
D.
It made him want to look away.
【简答题】果树的分类有 分类 法和 分类 法,前者按植物系统分类法,后者按生物系统分类法;
【单选题】在外筒内径为d 1 、内筒内径为d 2 、长为L的同心圆筒组成的空隙中充满液体。现外筒不动,内筒绕轴线旋转,忽略端效应,则水的当量直径为( )
A.
d 1 -d 2
B.
d 1 +d 2
C.
（d 1 -d 2 ）/2
D.
（d 1 +d 2 ）/2
【单选题】I wonder __________ that made him so upset yesterday.
A.
it was what
B.
what is it
C.
what it was
D.
it what is
【多选题】一内、外半径分别为r1和r2的长圆筒壁,有均匀内热源,圆筒壁中发生径向一维稳态导热,则关于壁内最高温度所在位置的下列说法中,正确的是。
A.
最高温度可能在外边界面上
B.
最高温度- -定在圆简壁内部
C.
最高温度-定在内边界面上
D.
最高温度可能在圆筒壁内某处
【单选题】The patient looks much better . -------_____is it that has made him ____he is today ?
A.
what ; that
B.
That ; that
C.
What;which
D.
What;what
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