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【单选题】
内无裂纹、未焊透、未熔合和条状夹渣的焊缝为（）。A.
I级焊缝
B.
II级焊缝
C.
III级焊缝
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举一反三
【简答题】Short c onversation 1
【单选题】C onversation 2 1 ______
A.
How to learn to find information on the Internet.
B.
How to use search engines like Google.
C.
Where to find this year ’ s Oscar winners.
D.
Google, the fastest and smartest search engine.
【单选题】患者男,68岁。因急性心肌梗死收入院,第二天突然意识丧失,血压测不清,颈动脉搏动消失。住院心电图监测如图所示。此时应采用最有效的治疗是
A.
人工呼吸
B.
再次进行溶栓治疗
C.
非同步直流电复律
D.
静注利多卡因
E.
心腔内注射肾上腺素
【单选题】C onversation 2
A.
They could break people's legs
B.
They could sometimes terrify adults
C.
They could fly against a strong wind
D.
They could knock people unconscious
【单选题】患者 ,男性,68岁。因前壁心肌梗死 入 院,在 入 院 3天后,突然出现气急加重,不能平卧,诊断为乳头肌断裂。此时心脏体征应该是
A.
胸左缘第3肋间出现舒张期哈气样杂音
B.
主动脉区出现收缩期吹风样杂音
C.
胸骨右缘出现舒张期吹风样杂音
D.
心尖部出现收缩期吹风样杂音
【简答题】n =4 , l =0 轨道上的两个电子和 n =3 、 l =2 轨道上的 5 个电子是价电子的元素是( ) ,价电子构型是( )
【单选题】C onversation 2
A.
One would get a spot on their tongues if they told a lie deliberately
B.
One would have to shave their head to remove a bat in their hair
C.
One would go to prison if they put a stamp on upside down
D.
One would have curly hair if they ate too much stale bread
【单选题】C onversation 5 A. It is one-sided. B. It is objective. C. It is reasonable. D. It is ridiculous.
A.
It is one-sided.
B.
It is objective.
C.
It is reasonable.
D.
It is ridiculous.
【单选题】C onversation 3 1.____
A.
In the library on campus.
B.
In a classroom.
C.
In the professor ’ s office.
D.
In the corridor between classes.
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