Please call Jenny _____536 4428. [ ]
A. in
B. to
C. on
D. at
答案：D
—Tom, what classes do you have every day?
—Well, Mom, we have English, math, Chinese and some ______ classes.
A．the other
B．/
C．other
D．others
根据爆炸性气体环境危险区域范围要求，当易燃物质可能大量释放并扩散到( )m以外时，爆炸危险区域的范围应划分附加2区。
A．5 B．8C．10 D．15
