双吊点起吊钢梁杆件，千斤绳对称拴绑，距端部为（）。
A.0.15L
B.0.21L
C.0.25L
D.0.33L
参考答案：B
There ______ a thunder storm tomorrow. [ ]
A. will be
B. is will be
C. is will
D. will have
油挡间隙过小时应如何调整？
