A、 ①③
B、 ②③
C、 ①④
D、 ②④
答案:B
A、 ①③
B、 ②③
C、 ①④
D、 ②④
答案:B
A. 乌拉尔山脉
B. 尼罗河
C. 里海
D. 土耳其海峡
A. ①④②③
B. ④③②①
C. ③①②④
D. ②①④③
A. is
B. are
C. were
D. /
A. 1.5
B. 2
C. 2.5
D. 3
A. for
B. since
C. at
D. after
A. 正确
B. 错误
A. 3
B. 4
C. 5
D. 6
A. 青海
B. 西藏
C. 四川
D. 北京
A. were washing
B. had washed
C. was washing
D. washed
A. 正确
B. 错误