大多数多台活塞式发动机的,螺旋桨的自动同步是通过哪个部件的工作完成的()?A.变距杆

题型:单项选择题

问题:

大多数多台活塞式发动机的,螺旋桨的自动同步是通过哪个部件的工作完成的()?

A.变距杆

B.节气门操纵杆

C.调速器

D.汽化器

考点:民用航空器维修执照考试M16螺旋桨M16螺旋桨题库
题型:单项选择题

依据《静脉用药集中调配质量管理规范》,药库阴凉区域温度应控制在()

A.不低于0℃

B.不高于10℃

C.不高于20℃

D.0℃~10℃

E.0℃~20℃

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关于米非司酮作用机理,下列哪项错误()

A.具有抗孕酮、糖皮质醇和轻度抗雄激素特性

B.米非司酮对子宫内膜孕激素受体亲和力比孕酮高20倍

C.可阻断孕酮活性

D.可使妊娠蜕膜坏死,释放前列腺素

E.使宫颈软化

题型:单项选择题

企业编制预算,一般应按照()的程序进行。

A.逐级上报

B.上下结合

C.分级编制

D.逐级汇总

题型:单项选择题

Democrats on the Senate Judiciary Committee vented their fury over high gasoline prices at executives of the nation’s five largest oil companies on Wednesday, grilling the oilmen over their multimillion-dollar pay packages and warning them that Congress was intent on taking action that could include a new tax on so-called windfall profits. Such showdowns between lawmakers and oil titans have become a familiar routine on Capitol Hill. But with gas prices nearing $ 4 a gallon, and lawmakers headed home for a weeklong Memorial Day recess where they expect to get an earful from angry constituents, there is added urgency for Congress to appear active.

But while momentum is building for several measures, including a bill that would allow the Organization of the Petroleum Exporting Countries to be sued in American courts under antitrust laws, there is little sign that any of the proposals would do much, if anything, to lower prices quickly. And the oil executives warned that government intervention might only make things worse. Instead, they called on Congress to allow more drilling and exploration for domestic oil.

The increasing urgency to seem aggressive about gasoline prices was apparent on Tuesday when the House voted by an overwhelming 324 to 84 to approve the bill, commonly referred to as NOPEC, which classifies OPEC as a monopoly in violation of the Sherman Antitrust Act. Senate Democrats have included that measure as part of a package of legislation intended to address the high price of gasoline, along with the tax on windfall profits and a measure to tamp down speculation in the oil futures market that many lawmakers think is contributing to the run-up in prices.

At the Judiciary Committee hearing, Democratic senators struggled to have the executives explain how oil prices had risen so high. The senators expressed doubt that basic laws of supply and demand were at work and suggested instead a more sinister combination of monopolistic behavior by oil-producing countries, speculation in the futures markets and sheer corporate greed.

On Monday, President Bush signed a bill temporarily suspending the purchase of crude oil for the nation’s Strategic Petroleum Reserve. Mr. Bush had initially opposed such action but relented after the House and Senate approved the bill by wide margins. Senator Richard J. Durbin, Democrat of Illinois and a p supporter of Senator Baraek Obama’s presidential bid, made a particularly pointed attack, in which he seemed to warn the oil executives that they would soon no longer have such a good friend in the White House. He also suggested that Mr. Bush should be doing more to press the oil companies to help lower prices at the pump, while acknowledging that it would be difficult to pass a windfall profits tax while Mr. Bush was still in office.

What can we infer form the last paragraph()

A. The nation’s Strategic Petroleum Reserve is more than adequate

B. Democrats argue that greedy oil companies are the key factor of jumping oil price

C. President Bush used to be reluctant to drag down the oil price

D. The federal law bans the windfall profits tax in Bush Government

题型:单项选择题

乒乓球被称为“桌上网球”,它起源于19世纪的()。

A、中国

B、英国

C、美国

D、日本

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