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【单选题】
达到化学平衡的条件是(    )。
A.
正反应停止
B.
逆反应停止
C.
正、逆反应速率相等
D.
反应物与产物浓度相等
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【判断题】Directions: select the correct English expression corresponding to each of the following Chinese phrases. 没有用 It is no use. / There is no use.
A.
正确
B.
错误
【单选题】There is no use with the referee while a game is going on.
A.
argue
B.
arguing
C.
to argue
D.
to arguing
【简答题】As the old saying goes: "There is no use(cry)______ over spilt milk."
【简答题】There is no use ( cry )over the split milk.
【判断题】There is no use to get along with colleagues.
A.
正确
B.
错误
【单选题】( )是指通过 机械加工的方式,除去磨损零件的表面层,使零件具有规定的几何形状和新的尺寸的修复方法。
A.
翻转修理法
B.
修理尺寸法
C.
附加零件法
【简答题】二3 "( ) " 的代号是英文 "Knot" 的词头,采用 " Kn " 表示。是船舶航速的单位。
【单选题】—All the isatis root(板蓝根) is sold out! —People are crazy! experts say there is no use eating isatis root to prevent H7N9, some people still don’t believe it.
A.
Although
B.
Unless
C.
As a result
D.
In order that
【单选题】There is no use ___ him at this hour.
A.
to call
B.
called
C.
call
D.
calling
【单选题】67手工电弧焊焊接承压类特种设备等重要结构时,一般要求采用( )
A.
低氢焊条交流焊机正接
B.
低氢焊条交流焊机反接
C.
低氢焊条直流焊机正接
D.
低氢焊条直流焊机反接
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