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【单选题】
听力原文:M: Excuse me, madam. I'm a stranger here and I'm running low on gas, but I can't seem to find a service station anywhere around here. Could you be kind enough to direct me to the nearest one? W: No problem. This is a small town and even the nearest service station isn't very close. First you take a left at the stop light. Proceed east for about a mile, and there's one on your right, just next to the hospital. M: I did not catch you very well. Would you mind going over the directions once more? W: Not at all. Take a right at the stop light and continue on the street until you see the hospital on your fight. The service station is just next to the hospital, which is not far from a post office. M: Thanks a lot. Does the service station accept credit cards? W: No, it doesn't. But there is a bank across the street from it and you can get money there if you like. M: That's probably what I'll do. W: You also might consider buying a map at the service station. This is a rural area and a little isolated, so it is very easy to get lost. M: I think I'll do that. I really appreciate your help. W: It's been my pleasure. Here is Little Stone Town we welcome all visitors to our city. What has happened to the man?
A.
He needs a gas station.
B.
He lost his way home.
C.
He wants to go to the hospital.
D.
He lost the letter to be posted.
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【单选题】用Sephadex分离下列物质,最先流出的是( )
A.
黄酮苷元
B.
黄酮单糖苷
C.
黄酮双糖苷
D.
黄酮三糖苷
【判断题】[判断题] 在工作地点设置“止步,高压危险!”的标示牌。()
A.
正确
B.
错误
【多选题】以下地点必须设置“止步,高压危险”的有()。
A.
设置在室外带电设备工作地点的安全围栏上
B.
设置在工作地点临近带电设备的横梁上
C.
设置在高压试验地点的安全围栏上
D.
设置在室外带电设备的构架上
【简答题】付邮试用规定发货时间一般为____天,由于付邮商家发货量大,有延迟现象请各位会员谅解。具体可参看卖家商品详情页介绍。
【单选题】根据渠道的每个层次中使用相同类型的中间商数目的多少可将分销渠道分为( )。
A.
直接渠道和间接渠道
B.
宽渠道和窄渠道
C.
零层渠道、一层渠道、二层渠道、三层渠道
D.
生产资料渠道和消费资料渠道
【判断题】在工作地点设置”止步,高压危险!”的标示牌
A.
正确
B.
错误
【单选题】Sephadex G-50的适用于分子量范围在1500~30000之间的物质的分离,以该凝胶为介质分离下列分子量的多糖,最先流出的是
A.
1000
B.
16000
C.
20000
D.
24000
E.
100000
【判断题】依据《中国南方电网有限责任公司电力安全工作规程》,在工作地点或检修的电气设备应设置“止步,高压危险!”标示牌。
A.
正确
B.
错误
【判断题】在工作地点或检修的电气设备应设置“止步,高压危险!”标示牌。()
A.
正确
B.
错误
【多选题】在室内高压设备上工作,下列哪些位置,应悬挂“止步,高压危险!”的标示牌?()
A.
工作地点两旁运行设备间隔的遮栏(围栏)上
B.
禁止通行的过道遮栏(围栏)上
C.
工作地点对面运行设备间隔的遮栏(围栏)上
D.
工作地点所在高压室的门口
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