对密封的要求是:()、()、()。
参考答案:严密;可靠;整合长
–Why do you always watch Channel 8 instead of Channel 6, Grandpa ?
-The program on Channel 8 are ______better .
A.much better
B. more
C.more much
D.much
-1,2,11,38,()
A.119
B.133
C.121
D.117