The article suggests that______.
A. our earth exists before the sun
B. how space formed
C. no one knows where the earth comes from
D. our earth used to be part of a high mountain on the sun
第1题:
A.所有class为article的元素的首字母
B.所有class为article的段落
C.所有class为article的段落的首单词
D.所有class为article的段落的首字母
第2题:
makes our environments tolerable and some ultraviolet rays (紫外线) penetrate the ____
[A] environment
[B] space
[C] atmosphere
[D] earth
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3题:
There are over 58, 000 rocky objects in _______ space, about 900 of which could fall down onto _______ earth.
A.the; the
B. 不填; the
C.the; 不填
D.a; the
第4题:
The atmosphere again acts our protective blanket on _____
[A] stars
[B] sun
[C] earth
[D] space
选C
act as“充当、起……作用”;act for“代表、代理”;act on“按照”。本句意为大气层起到保护伞的作用。
第5题:
Radiation is the greatest known danger to explorers in _________
[A] earth
[B] atmosphere
[C] space
[D] environment
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6题:
以下哪个标签不是 HTML 5 的语义化标签()
A.<header></header>
B.<section></section>
C.<marquee></marquee>
D.<article></article>