2. 外语
  3. Nuclear fusion not only powers the sun______ in thermonuclear weapons.

Nuclear fusion not only powers the sun______ in thermonuclear weapons.

admin2019-07-01  56
问题 Nuclear fusion not only powers the sun______ in thermonuclear weapons.
选项 A、but also occurs
B、also does it occur
C、but also it occurs
D、it also has occurred
答案A
解析 But also occurs is parallel to not only powers. The paired expression not only...but also connects parallel verb phrases: not only powers the sun but also occurs in thermonuclear weapons.
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