影响中国的台风源地位于 洋面。
A. 南海中部
B. 关岛附近
C. 菲律宾以东
D. 孟加拉湾
Cats use ______ to help them navigate in a dark environment.
A. tails
B. fur
C. whiskers
D. toes
食材现代药理研究,每人每天食用多少克的鲜番茄即可满足人体对几种维生素和矿物质的需要?()
A. 50-100克
B. 100-150克
C. 150-200克
D. 200-250克
They bargained for half an hour, and of course in the end Mr. Boggis got the chairs and agreed to pay her something ______ a twentieth of their value.
A. more than
B. at
C. less than
D. at least