固体吸附剂的湿容量一般与()成正比。
A、吸附剂的比表面积
B、吸附剂的堆积密度
C、吸附剂的比表面积与其堆积密度的乘积
D、吸附剂的空隙率
参考答案:B
The lawyer rarely wears anything other than jeans and a T-shirt ____ the season is. [ ]
A. whatever
B. wherever
C. whenever
D. however
光缆牵引端头的种类常见有简易式、()、()、网套式等牵引端头。