4个7相加是多少?

题型:计算题

问题:

4个7相加是多少?

考点:百以内的连加,连减,加减混合计算及应用
题型:计算题

当路堤浸水后,路堤要受到水的浮力和渗透动水压力的作用。当水位骤然降落时,( )。

A.渗透动水压力的方向指向堤外,路堤的稳定性降低

B.渗透动水压力的方向指向堤内,路堤的稳定性降低

C.渗透动水压力的方向指向堤外,路堤的稳定性提高

D.渗透动水压力的方向指向堤内,路堤的稳定性提高

题型:计算题

下列关于休克病人的处理,正确的有()

A.内失血性休克宜在抗休克的同时立即手术止血

B.合并颌面部严重创伤的休克病人,首先应保证气道通畅

C.合并骨折的休克病人,术前宜给予止痛

D.失血性休克病人,宜及时使用升压药

E.感染性休克病人,抗生素治疗比手术治疗更重要

题型:计算题

轧辊磨削一般分为三个阶段()。

题型:计算题

精神运动变异型频率为()。

A.α频段

B.β频段

C.θ频段

D.δ频段

E.γ频段

题型:计算题

"What does the middleman do but add to the price of goods in the shops " Such remarks are aimed at the intermediate operations between manufacturers and final customers. This practice usually attracts a lot of attention from the public and the press and the operation most talked about is what is often called wholesaling.The wholesaler buys goods in large quantities from the manufacturers and sells them in smaller parcels to retailers, and for this service his selling price to the retailer is raised several percent higher. But his job is made more difficult by retail demand not necessarily running level with manufacturers’’ production. Because he adjusts or regulates the flow of goods by holding stock until required, he frees the manufacturer, to some extent, from the effect on production of changing demand and having to bear the whole risk.The manufacturer can then keep up a steady production flow, and the retailer has no need to hold heavy stocks, who can call on the wholesaler for supplies any time. This wholesale function is like that of a valve in a water pipe. The middleman also bears part of the risk that would otherwise fall on the manufacturer and also the retailer.The wholesaler provides a purely commercial service, for which he is too well rewarded. But the point that is missed by many people is that the wholesaler is not just someone adding to the cost of goods. It is true one could eliminate the wholesaler but one would still be left with his function: that of making sure that goods find their way to the people who want them.

The wholesaler regulates the flow of goods by________.

A.running level with manufacturers’ production

B.holding down stock of commodities

C.keeping stock for per demand

D.adjusting the prices of goods in time

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