皮皮学，免费搜题
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【简答题】
Listen to the conversation between a customer and the manager of the Delivery Department. Then fill in the blanks with what you hear. M: Could you deliver our goods by train? W: Why? According to our 1 we should deliver them by truck. M: We hope we can receive the goods 2 . It’s faster by train. W: Don’t worry. We’ll have no trouble meeting your ________ 3 ___ _____ . And if a customer requests a carrier other than truck, he must bear the 4 . M: Well, in that case, we don’t insist on changing the 5 if you promise to deliver the goods on time. W: All right. Thank you.
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于臂丛,错误的描述是
A.
锁骨中点后方是臂丛阻滞麻醉部位之一;
B.
胸长、胸背神经属其分支;
C.
由颈5~8 和胸1 脊神经前支组成;
D.
主要支配上肢的活动;
E.
肌皮神经起自臂丛内侧束;
【判断题】设 [x] 补 = 0.x 1 x 2 x 3 x 4 x 5 x 6 x 7 ,若要求 x > 1/2 成立,则需要满足的条件是 x 1 必须为 1 , x 2 ~ x 7 至少有一个为 1 。
A.
正确
B.
错误
【单选题】熔断器应接于被保护的电路中,当电路发生 或 故障时,自行熔断,从而将故障电路切断,起到保护作用。( )
A.
短路或过载
B.
失压或过流
C.
过压或过流
D.
短路或过压
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