题目内容

债券在二级市场上的交易方式包括:()。

A. 期货交易
B. 期权交易
C. 回购协议
D. 现货交易
E. 溢权交易

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The Testking corporate LAN consists of one large flat network. You decide to segment this LAN into two separate networks with a router. What will be the affect of this change?()

A. The number of broadcast domains will be decreased.
B. It will make the broadcasting of traffic between domains more efficient between segments.
C. It will increase the number of collisions.
D. It will prevent segment 1's broadcasts from getting to segment 2.
E. It will connect segment 1's broadcasts to segment 2.

角向磨光机的砂轮应选用增强纤维树脂型,其线速度不得小于()。磨削时,应使砂轮与工件保持15°~30°的倾斜位置;切削时,砂轮不得倾斜,不得横向摆动。

A. 90m/s
B. 100m/s
C. 60m/s
D. 80m/s

通行费发票包括:()

A. 电脑发票
B. 打印发票
C. 手写发票
D. 定额发票

要获得洁净的蒸气,必须降低锅水的()

A. 排污量
B. 加药量
C. 含盐量

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