哺乳动物特有的结构包括()。
A.次生腭
B.爪
C.毛
D.汗腺
参考答案:C, D
John is not a man to count on, and it is very likely that the work ____ by the time he arrives here.[ ]
A. is finished
B. has finished
C. will finish
D. will have been finished
Kingdom of Wonders,______in 1995 in Fremont, Calif., became an industry legend for two toys: a talking bear and a ray-gun game.
A.find
B.found
C.founded
D.founding