按要求完成下列作图. (1)在图中,物体A重8N,根据给出的标度,作出物体A受到

题型:问答题

问题:

按要求完成下列作图.

(1)在图中,物体A重8N,根据给出的标度,作出物体A受到重力的图示.

(2)根据图中的入射光线和折射光线,在虚线框内画出适当类型的透镜.

(3)根据图中通电螺线管的N、S极,标出螺线管上导线中的电流方向.

(4)图中,请画出力F对支点O的力臂,并用字母L标明.

考点:重力的示意图实像和虚像安培定则(右手螺旋定则)力臂的画法
题型:问答题

c-ANCA阳性主要见于(),p-ANCA阳性主要见于()等。

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纳税人将应税消费品与非应税消费品以及适用税率不同的应税消费品组成成套消费品销售的,应按()。

A、应税消费品的平均税率计征

B、应税消费品的最高税率计征

C、应税消费品的不同税率,分别计征

D、应税消费品的最低税率计征

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Paul and John each hold 50% of the issued shares in PJ Limited. They are also the only directors of the company. During the past four months PJ Limited has been encountering fi nancial diffi culties and Paul and John believe that it is very unlikely that the situation will improve. Paul and John are thus seriously considering placing the company into liquidation and have been informed that they would have to prepare a declaration of solvency. Furthermore, six months ago the Court of Appeal confi rmed a judgement ordering PJ Limited to pay one of its creditors the sum of €10,000. To date this sum has not been paid.Required:

(b) Explain under which circumstances a company may be dissolved and wound up by the court. (3 marks)

题型:问答题

电渣焊焊缝的化学成分,主要是通过熔渣与金属间的冶金反应来控制。( )

题型:问答题

我国现常用的避孕措施为

A.避孕套

B.避孕药

C.宫内节育器

D.安全期避孕

E.免疫避孕

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