在民用建筑工程室内用溶剂型涂料中，苯的含量不应大于( )。
A．2g/kgB．3g/kgC．4g/kgD．5g/kg
参考答案：D
The boy went swimming in the deep lake his mother's fears for his safety. [ ]
A. in the face of
B. as a result of
C. regardless of
D. in spite of
丁字尺与三角板随意配合，便可画出65度的倾斜线
