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【单选题】
按照第三强度理论，比较图示两个应力状态的相当应力（图中应力单位为MPa） 。【图片】A.
（ A ） 两者相同；
B.
（ B ） (a) 大；
C.
（ C ） (b) 大；
D.
（ D ）无法判断。
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反馈参考答案：
举一反三
【单选题】To disappear means to ______.
A.
force to go away
B.
give up hope
C.
refuse to follow
D.
no longer exist
【单选题】I _______my teacher since last year. I miss him very much.
A.
didn’t see
B.
saw
C.
haven’t seen
D.
see
【单选题】Which word means to refuse to obey or show respect for sb. in authority, a law, a rule, etc.
A.
hail
B.
ban
C.
bid
D.
defy
【单选题】it means: to refuse to accept that sth. might be true or important
A.
dismiss
B.
formidable
C.
preside over
D.
gaze
【判断题】It is often impolite to refuse an offer of service by means of such a reply as “Oh! Please don’t bother,” followed by an explanation of why you can do without it.
A.
正确
B.
错误
【简答题】依靠接触器( )而保持接触器线圈通电的现象称为自锁。
【简答题】Read and answer the questions: Doing business in China means you have many chances to meet your s around the dinner table. Chinese businessmen always express their hospitality by inviting you to...
【简答题】依靠接触器( )而保持接触器线圈通电的现象称为自锁。
【单选题】狐惑病”初得之三四日,目赤如鸠眼;七八日,目四眦黑“。病人若由不欲食转为能食,表明
A.
胃热增加,热能消
B.
胃气来复,病将向愈
C.
胃阴受损.引食以自救
D.
局部酿脓.湿热影响脾目反轻
E.
腹中虫毒,饥而饮食
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