郊区环境下倾角一般控制在（）左右。
A.1至2度
B.3至4度
C.5至6度
参考答案：B
If you ________ yesterday，you ________ with your mother now.
A．set off; would talk
B．had set off; would be talking
C．set off; would have talked
D．had set off; would talk
金融风暴期间，物价普遍下降，我国煤电价格却人为调高，这样做的根本目的是
A．满足市场需求
B．节约资源
C．与国际接轨
D．淘汰中小企业
