个体的成就动机中含有两种成分：追求成功的倾向和（）。
A、追求利益的倾向
B、避免失败的倾向
C、回避困难的倾向
D、追求刺激的倾向
参考答案：B
用适当的介词或副词完成下列句子。
1. There was nobody in the empty street ____ whom he could turn for help.
2. Mandela was generous ____ his time, ____ which I was very grateful.
3. We were put in a position ____ which we had either to accept we were less
important or fight the government.
4. However, in 1963 I helped him blow ____ some government buildings.
5. The address ____ which all letters were sent was in South Africa.
根据《重大危险源辨识》(GB 18218—2000)标准，辨识重大危险源依据是( )。
A．物质的临界特性及数量B．物质的比重及数量C．物质的密度及数量D．物质的危险特性及其数量
