单项选择。
You don't need ____ wait for me. [ ]
A. to
B. /
C. for
D. at
答案：A
( ) is a major port of Norway.
A．Oslo
B．Oran
C．San Juan
D．Rouen
在原播种或插条等育苗地上未经移栽继续培育的苗木叫（）。
A、换床苗
B、播种苗
C、留床苗
D、插条苗
