碱性焊条的烘干温度应该比酸性焊条好。
参考答案:对
Smell the flowers before you go to sleep and you may just _____ sweet dreams.
A. keep up with
B. put up with
C. end up with
D. catch up with
出现精索静脉曲张的是()
A.肾癌
B.膀胱癌
C.睾丸肿瘤
D.前列腺癌
E.前列腺增生