A、spontaneity
B、responsibility
C、complexity
D、confusion
第1题:
Cosmic ( 宇宙的) rays of various kinds come __________ the air from outer space
[A] across
[B] to
[C] from
[D] through
是完型填空吧?你要把整篇都传上来这样片面的截句无法给出答案。
第2题:
第3题:
第4题:
A.2 through 1001
B.1 through 1001
C.1 through 1002
D.2 through 1005
第5题:
第6题: