此症适宜的治疗手段是
A．手术
B．介入治疗
C．服药
D．手术+介入治疗
E．服药+介入治疗
参考答案：A
With the development of science and technology, there is no doubt________Chinese astronauts will
land on the moon in the near future. [ ]
A. whether
B. that
C. what
D. which
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