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【多选题】
下列有关管道管材中钢管的说法正确的包括( )A.
高压燃气管道必须使用钢管
B.
低压燃气管道在通过主干道要用钢管
C.
中压燃气管道也大多使用钢管
D.
钢管按照制造方法包括有缝钢管、卷焊钢管和水煤气输送钢管
E.
焊接钢管的连接方法有螺纹连接、焊接；无缝钢管、不锈钢管的连接方式主要有焊接、法兰连接
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举一反三
【单选题】A nursing home in Tianjin has opened offering ________ the owners are describing as facilities as good as a fivestar hotel.
A.
which
B.
how
C.
what
D.
that
【简答题】What can a nursing home do for aging parents? It provides them with proper ______.
【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.
【单选题】Medicaid can pay for the nursing home of the senior citizens only when__________.
A.
he or she has no children to rely on
B.
the cost has surpassed half of the supporters assets
C.
the nursing home costs no more than $77,745 a year
D.
his or her lifespan is not too long
【单选题】The hotel is going to be______ into a nursing home.
A.
controlled
B.
confirmed
C.
consumed
D.
converted
【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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