工程咨询的专题研究的范围、内容、深度等应依据( )确定。
A.规划和产业政策。
B.客户要求和研究需要
C.地区和社会发展水平
D.咨询公司的能力和资源
参考答案:B
—What was it that________the terrible accident?
—His driving after drinking.
A.referred to
B.turned to
C.led to
D.stuck to
E型热偶丝由哪两种材料构成.()
A.镍铬-镍硅
B.镍铬-镍铝
C.铜-康铜
D.镍铬-康铜