单项选择题

The results of the experiments were ______ and they will have to be done again.

A．opaque
B．ambiguous
C．obscure
D．illegible
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单项选择题
Only the ______ of the office manageress, who knew of Alice's personal difficulties saved her from being dismissed.
A．interference
B．inquisition
C．interrelation
D．intervention
单项选择题
It is ______ in plain terms that no pension can be paid to anyone under the age of sixty unless he is disabled.
A．laid up
B．laid down
C．laid aside
D．laid out
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