片状吊钩一般选用Q235或()的钢板,切割成型的多片状铆接而成。
(A)16Mn;
(B)铸铁;
(C)铸钢;
(D)45号钢。
参考答案:A
But for the sudden rainstorm, our trip to Hong Kong _____ a very pleasant one.
A.was
B.would have been
C.would be
D.had been
五灵脂汤功效与作用