焊接缺陷的存在,会对焊接结构的性能和安全使用产生重要影响,造成严重的应力集中、削弱承载截面、降低接头的强度和致密性,导致接头的()下降,缩短构件使用寿命。
参考答案:承载能力
His parents wouldn't let him marry anyone _____ family was poor. [ ]
A. of whom
B. whom
C. of whose
D. whose
Neither Wei Hua nor Ann _____ on the team. [ ]
A. is
B. are
C. goes
D. go