按照我国《企业伤亡事故分类标准》(GB 6441—186)规定，职业伤害事故分为( )类。
A．16
B．18
C．20
D．22
参考答案：C
It took a long time for the connection between body temperature and illness __________.
A．to make
B．to be made
C．making
D．being made
如果每代面粉的质量一定，那么面粉的总质量和袋数成______比例，如果面粉的总质量一定，那么每袋面粉的质量和袋数成______比例．
