泵的效率随流量的增大而提高。（）
参考答案：错
世界上跨纬度最广的大洲是（ ）
A．亚洲
B．非洲
C．南极洲
D．南美洲
Mr White has just been in China for weeks and he’s trying to _____ the climate here.
A．help out
B．adjust to
C．depend on
D．hold up
