CRH1A型动车组半永久车钩用于列车组内各车辆间的机械连接及()和压缩空气连接。A.

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问题:

CRH1A型动车组半永久车钩用于列车组内各车辆间的机械连接及()和压缩空气连接。

A.水路

B.ATP

C.LKJ

D.电气

考点:动车组机械师考试CRH1型动车组机械师CRH1型动车组机械师题库
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在连接电路时,常要将金属导线绕到接线柱上,再旋紧螺丝.观察右图甲和乙,金属线在接线柱上绕向正确的是______;旋紧螺丝时,应当______旋转.(选填“顺时针”或“逆时针”)

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男性,35岁,发现右上第二双尖牙腭侧牙龈发白3天,检查见患部有1cm× 0.5cm白色角化斑块,表面棘刺状

下列哪项最有助于诊断或鉴别诊断

A.家族患病史

B.结核病史

C.局部残根、残冠

D.药物过敏史

E.吸烟

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窗体上有名称为Command1的命令按钮,名称分别为List1、List2的列表框,其中List1的MultiSelect属性设置为1(Simple),并有如下事件过程:
Private Sub Command1_Click( )
For i =0 To List1. ListCount - 1
If List1. Selected(i) = True Then
List2. Additem Text
End ff
Next
End Sub
上述事件过程的功能是将List1中被选中的列表项添加到List2中。运行程序时,发现不能达到预期目的,应做修改,下列修改中正确的是( )。

A) 将For循环的终值改为List1. ListCount
B) 将List1. Selected(i)=True改为List1. List(i). Selected=True
C) 将List2. AddItem Text改为List2. AddItem List1. List(i)
D) 将List2. AddItem Text改为List2. AddItem List1. ListIndex

题型:单项选择题

具有如下转化关系的下列物质中,已知A、B、C、D都是氧化物,A、甲两种物质均为黑色粉末,乙为红色物质.请回答下列问题.

(1)写出两种黑色粉末的名称:A______,甲______;

(2)写出上述转化关系中,发生下列类型反应的化学方程式:化合反应______,分解反应______.

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C

Everyone’s at it, even my neighbors. I thought I might be the only person left in the world who hadn’t done an eBay deal. So, I decided to try my hand at online auction(网上拍卖).

Buying for Beginners

Sign up on www. eBay. co. uk. Most items (e.g. tables, computers and books) ready for auction will come with a picture and a short description; others may be marked with “Buy It Now ” and have a fixed price. You can buy these right away.

If the item is being auctioned, you offer the highest price you are prepared to pay and eBay bids (出价) for you. The bid will be increased little by little until it goes beyond your highest bid, then you are emailed and asked if you would like to bid again. Auctions last up to 10 days and when they finish, you get an email telling you whether you have won the item.

How to Pay

Sellers decide how they would like to be paid and you need to check this before placing a bid as you might not want to post a check or postal orders. The easiest way is through PayPal, an online payment system that takes the money away from your credit card.

Selling Made Simple

If you plan to sell on eBay, it helps to include a picture of the item. I followed my friends’ advice and put up the items I wanted to sell for a 10-day auction, starting on a Thursday. This way buyers had two weekends to bid.

The big Things in Life

It’s easy to post a small item, but furniture is a big part of eBay and this has to be collectively sent by deliverymen. Check the ways of delivery before you bid.

64. What is the passage mainly about?

A. How to make payment online.                       B. Ways of making delivery online.

C. How to use an online-auction system.             D. Advantages of an online auction system.

65. After bidding for an item, a buyer ________.

A. has chances to make higher bids                    B. will get what he wants in ten days

C. should make payment immediately          D. may check its picture and description

66. The easiest way of making payment mentioned in the passage is ________.

A. through a local banking system                      B. by sending the money to the seller

C. through an online payment system                 D. by paying the deliveryman directly

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