未取得从业资格的人员，擅自从事期货业务的，中国证监会责令改正，给予警告，单处或者并处（）万元以下罚款。
A.3
B.5
C.10
D.1
参考答案：A
The growing speed of a plant is influenced by a number of factors，________ are beyond our control.
A．most of them
B．most of which
C．most of what
D．most of that
冷换设备试压时，压力缓慢上升至规定压力后，恒压时间不低于（），然后降至操作压力进行详细检查。
A、10min
B、20min
C、30min
D、60min
