逆境
参考答案:
对植物生长发育不利的各种环境因素的总称。
The court required that he the fine. [ ]
A. paid
B. would pay
C. paying
D. pay
室内给水设备中,水箱安装的允许偏差,垂直度每米不超过( )mm。
A.1B.5C.10D.15