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【单选题】
下列有关血制品的叙述正确的是()
A.
输入血浆前不需做血型鉴定
B.
输入成分血之前不需做交叉配备
C.
血小板浓缩悬浮液应保存在-30°C,保存期为1年
D.
与全血相比,输入成分血不易引起高钾血症和酸中毒
E.
血浆内主要为白细胞和血浆蛋白,不含红细胞
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参考答案:
举一反三
【单选题】测量细菌大小单位是
A.
μm
B.
nm
C.
mm
D.
cm
E.
m
【单选题】以下关于各主接线描述中错误的是( )。
A.
对于单母线分段接线,继电保护装置可以使分段断路器跳闸,保证正常母线段继续运行。
B.
带旁路母线的主接线中,当检修任一出线回路的断路器时,可以不中断对该回路的供电。
C.
对于双母线三分段接线,当全部进出线合理均匀分配在三段母线上运行,母线故障时的停电范围可以降低到三分之一。
D.
双母线接线中,任一组母线检修时,仅短时停电。
【单选题】听力原文:W: The day I turned thirty, I turned on the computer. I went into the over- thirty room for a joke. And he was there. And we started chatting. M: About what? W: Books, music, how much we both lov...
A.
Her boyfriend.
B.
A stranger.
C.
A co-worker.
【单选题】听力原文:Woman: Here's your key, Mr. Smith. You're in room three ten on the third floor. The elevator is just over there. Oh, and check-out time tomorrow is at noon. Man: That won't be a problem. I'll nee...
A.
At home
B.
Atabank.
C.
At ahotel.
D.
At an airport.
【单选题】听力原文:M: Excuse me, have you got a light? W: No, I'm sorry. Perhaps the gentleman over there can help you. Q: what does the woman think about the gentleman over there? (13)
A.
He sells matches.
B.
He is not a smoker.
C.
He probably has a light.
D.
He must be a smoker.
【单选题】测量细菌大小单位是
A.
μm
B.
nm
C.
mm
D.
cm
【单选题】设计一个两级放大电路,要求电压放大倍数的数值大于10,输入电阻大于10MΩ,输出电阻小于100Ω,第一级和第二级应分别采用( )。
A.
共漏电路、共射电路
B.
共源电路、共集电路
C.
共基电路、共漏电路
D.
共源电路、共射电路
【单选题】测量细菌大小单位是( )
A.
nm
B.
μ m
C.
mm
D.
m
E.
cm
【单选题】Choose the correct participles 1) She's the woman _______ a yellow t-shirt. 2) He's the man ________ to the girl over there. 3) They're _______ wine with my friends in the back room.
A.
1) smiling 2) smoking 3) drinking
B.
1) wearing 2) talking 3) drinking
C.
1) typing 2) dancing 3) fighting
【单选题】消防安全设备是仓库中必不可少的设备,它不包括
A.
报警器
B.
消防通道
C.
手动抽水器
D.
灭火器
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