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【多选题】
平稳操作是指保持压力容器在运行期间载荷的相对稳定。下列五个选项中，与平稳操作的安全目的要求有直接关系的是为防止（）。A.
压力容器的超压
B.
降低容器材料的断裂韧性
C.
容器壳壁中的热应力过大
D.
生产中用气单位的供气量小
E.
对容器的抗疲劳强度不利
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举一反三
【单选题】The people you find most diffcult can also be your most valuable teachers.
A.
dealing with
B.
to be dealt with
C.
to deal with
D.
being dealt with
【单选题】Even after he ______ as the most valuable employee, he could not gather enough courage to ask his boss for a raise.
A.
will be named
B.
had been named
C.
is named
D.
has been named
【简答题】影视广告的劣势是
【单选题】The author suggests that the most valuable resource in todays society is______.
A.
technology
B.
economic assets
C.
access to information
D.
time
【单选题】以下对二维数组a 的正确说明的语句是（ ）
A.
int a [3,4 ];
B.
float a (3,4);
C.
double a[3][4];
D.
float a (3)(4);
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