单项选择题

The incidence of this disease has been greatly reduced thanks to our health care program.

A．seriousness
B．frequency of occurrence
C．mortality
D．cure rate
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单项选择题
Obviously these are all factors affecting smooth operation, but the underlying problem is still to be identified.
A．operational
B．fundamental
C．operating
D．underneath
单项选择题
If the batik's statement agrees with my bank balance, it does not follow indisputably that the balance is correct.
A．indispensably
B．unquestionably
C．disreputably
D．consequently
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