53.One of the most important questions they had to consider was __英语解答

53.One of the most important questions they had to consider was ____ of public health.（全国I）
A.what B.this
C.that D.which

人气：368 ℃　时间：2019-09-03 00:47:08

解答

答：选C解析：本题考查代词的用法.四个选项中,只有that可以代替句单数可数名词或不可数名词,以避免重复.如：The output of steel this year has increased by 20% compared with that in 1992. 今年钢产量比一九九二...