有理论认为人在未来的发展上哪个部位会变大（）
A、驱赶
B、手
C、脚
D、脑袋
参考答案：D
“Drive-ins” have large parking lots _____ customers are served in their cars by waitress.
A．who
B．when
C．which
D．where
抗生素根据抗菌谱可分哪几类？并列举代表药物？
