1.单选题- (共3题)
2.
It seems that the H7N9 flu ________ more easily among the aged people.
A.causes | B.discovers | C.finds | D.spreads |
试卷分析
-
【1】题量占比
单选题:(3道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:3
7星难题:0
8星难题:0
9星难题:0