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【单选题】
等浓度的下列溶液中,导电性能最小的是 ( )A.
盐酸
B.
氨水
C.
氢氧化钠溶液
D.
氯化钠溶液
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反馈参考答案：
举一反三
【单选题】Call me, write to me, email me; ________, let’s keep in touch.
A.
came over
B.
at any rate
C.
interference
D.
fading
【单选题】Call me, write to me, email me; __, let's keep in touch.
A.
over and over
B.
at any rate
C.
in unison
D.
know better than that
【单选题】Call me, write to me, email me; ,let's keep in touch.
A.
besides
B.
in addition to
C.
what's more
D.
at any rate
【简答题】Call me, write to me, email me;____________, let’s keep in touch.
【单选题】若传热系数 K 满足公式: 1.PNG ,当ao >>ai 时,为了提高 K 值,最有效的途径是( )。
A.
ao 提高
B.
ai提高
C.
ai、ao同时提高
D.
不能确定
【简答题】Water cannot resist(反抗) a pressure(压力) exerted on it in only one direction, the way, for example, a block of steel(钢块) can when it resists being squeezed(挤压) in a vise(台钳).
【单选题】Call me, write to me, email me; __, let's keep in touch.
A.
in unison
B.
at any rate
C.
narrow down
D.
over and over
【简答题】10) Call me, write to me, email me; ______, let's keep in touch.
【单选题】Call me, write to me, email me; , let's keep in touch.
A.
on any rate
B.
from any rate
C.
to any rate
D.
at any rate
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