考博考试

【单选题】 The author feels that a comparison of liquid and solid-fuel rockets shows that ______.
A．neither type is very economical
B．the liquid-fuel rocket is best
C．each type has certain advantages
D．the solid-fuel rocket is hest

网考网参考答案：C
网考网解析：
文中提到一些外行可能会问，相较而言liquid and solid-fuel rockets哪个更好，作者对此问题的看法是The question is meaningless，接着在文中分别阐述了两种类型火箭各自的优缺点，可以判断选项C符合。 查看试题解析出处>>