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【单选题】
当间歇反应釜中反应温度大于128°C时,已处于事故状态,如联锁开关处于“on”的状态,联锁起动。下列不属于联锁动作的是( )。A.
开高压冷却水阀
B.
冷却水阀
C.
关搅拌器
D.
关加热蒸汽阀
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皮皮学刷刷变学霸
举一反三
【单选题】If p is a prime number greater than 11, and p is the sum of the two prime numbers x and y, then x could be which of the following?
A.
2
B.
5
C.
7
D.
9
E.
13
【单选题】P assage 3
A.
By staying in hiding places and eating very little.
B.
By seeking food and shelter in people's houses.
C.
By growing thicker hair to stay warm.
D.
By storing enough food beforehand.
【简答题】Dictation P assage 8
【单选题】有以下程序 main () { char *s[]={'one','two','three'},*P; p=s [1]; printf ( '%c, %s/n', *(p+1) ,s[0] ); } 执行后输出结果是
A.
n,two
B.
t,one
C.
w,one
D.
o,two
【单选题】P assage 3
A.
To stay safe.
B.
To save energy.
C.
To keep company.
D.
To protect the young
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