防雷装置应沿建筑物的外墙敷设,并经最短途径接地,如有特殊要求可以暗设。
参考答案：对
渣油的金属含量大大高于减压瓦斯油，其中（）含量对催化剂影响较大。
A、Ni
B、S
C、N
D、Cu
— Which is _____, physics or math?
— Physics. And I think it is more useful in our daily life. [ ]
A. more interesting
B. interesting
C. most interesting
D. the most interesting
