()是对婴儿皮肤的特性不正确的描述。
A、保护功能差
B、体温调节能力强
C、代谢活跃
D、皮肤渗透作用强
参考答案:B
—Is Paul playing basketball for his school?
—Well,he ,But he has given it up and switched to playing volleyball.
A.is
B.was
C.has
D.had
我国标准轨距线路允许误差为+6mm、-2mm。