题目内容

We still have many problems______before we can produce atomic cars.

A. overcoming
B. having overcome
C. to overcome
D. to have overcome

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A. 井冈山根据地的创建
B. 湘赣根据地的创建
C. 湘鄂西根据地的创建
D. 陕甘宁根据地的翻建

A. another
B. the other
C. others
D. the others

A. no
B. not
C. nor
D. all

A. Expensive and not satisfying.
B. Excellent and delicious.
Cheap and nutritious.
D. Old-fashioned.