The main reason for the population growth isn’t so much a rise in birth rates ______ a fall in death rates as a result of improv

admin2012-02-26  32

问题 The main reason for the population growth isn’t so much a rise in birth rates ______ a fall in death rates as a result of improvements in medical care.

选项 A、and
B、but
C、or
D、as

答案B

解析 not so/as…as…意为“不如……”,not…but…意为“不是……而是……”。
转载请注明原文地址:https://kaotiyun.com/show/jvJO777K
0

最新回复(0)