—What is your favorite country?
—_ ___[ ]
A. Red
B. English
C. England
D. Japanese
答案:C
烟道废气温度越高,焦炉的热效率()。
A.越大
B.越小
C.不变
Nie Haisheng's dream _____ an astronaut _____ at last. [ ]
A. of becoming; came true
B. to become; came true
C. of becoming; was come true
D. to become; was made true