栽培百合应该注意什么问题？

用来鉴定细菌菌种的试验是（）

A.凝集试验

B.免疫浊度测定

C.正向间接凝集试验

D.反向间接凝集试验

E.协同凝集试验

以下关于国内(对中国香港)联运费用计算表述正确的是( )。

A．国内段铁路运费、深圳过轨租车费、深圳外运办事处劳务费和港段运杂费均以美元支付

B．国内段铁路运费、深圳过轨租车费、深圳外运办事处劳务费和港段运杂费均以港币支付

C．国内段铁路运费、深圳过轨租车费、深圳外运办事处劳务费和港段运杂费均以人民币支付

D．国内段铁路运费、深圳过轨租车费、深圳外运办事处劳务费以人民币支付，港段运杂费以港币支付

恒祥皮具厂为了扩大生产规模而欲向银行贷款200万元购买生产线。银行要求恒祥皮具厂提供担保，考虑到恒祥皮具厂所拥有的注册商标具有较高的知名度，双方遂协商以该注册商标专用权中的财产权出质，双方并签订了书面质押合同，但未进行登记。3个月后，邻县的另一家洛明皮具厂找到恒祥皮具厂，提出使用其注册商标并支付相应的使用费。恒祥皮具厂在经审查洛明皮具厂符合相应标准后，与洛明皮具厂签订了商标权许可使用合同。银行在得知这一情况后，认为恒祥皮具厂的许可行为侵犯了自己的质权，双方遂发生纠纷。关于本案，下列说法正确的是哪项

A．质押合同未生效，许可合同有效
B．质押合同已生效，许可合同无效
C．质押合同未生效，许可合同无效
D．质押合同已生效，许可合同有效

阅读理解。

     Barack Obama makes his first trip to Asia as president this week, leaving behind a host of domestic

problems with the visit that recognizes the region's economic and diplomatic importance. "Obama's trip

includes stops in Japan, Singapore, China and South Korea, and his message will be simple," says Nicolas

Lardy at the Peterson Institute for International Economics, "Well, I think his broadest objective is to

convince Asians that the United States is fully committed to the region that we have an agenda that's much

broader than they saw over the past eight years of the very heavy focus on counter terrorism."

     Obama's first stop is Japan, where he meets with the new Prime Minister Yukio Hatoyama who has

promised to steer a diplomatic course more independent of Washington. While Japan is seen as a getting-to-

know-you stop, when Obama heads to the Singapore for the APEC meeting, he will likely face pressure on

trade. "Many Asians are concerned about what US trade policy will be, and they've been somewhat alarmed

by the fact that the president really hasn't set out very much revision for what US trade policy is in his

administration."

     But the critical leg of the trip will come in China, his third stop where Obama will have to navigate the

complex relationship with the country that is the largest holder of US debt. "As you say, you know, if you

owe the bank one dollar, it's your problem, if you owe the bank, you know, 3 million dollars, it's the bank's

problem, so it's similar with China. I mean they have no interest in trying to use the influence with us, because

eventually, they're the one that they own all those dollars."

     Also on the table will be North Korea and Iran's nuclear ambitions as well as cooperation on Afghanistan.

     With Obama enjoying sky high popularity ratings in the countries he is visiting, concrete results may be

beside the point, given that Obama is still in his firs office, analysts say this trip is mostly about laying the

ground work for the future. 

1. From the second paragraph, we can infer that _____. [ ]

A. Japan and Singapore will give America some pressure on trade

B. Japan has not been the closest friend of America

C. Japan decides not to rely on America too much

D. Japan is concerned about what US trade policy will be

2. The word "leg" in the third paragraph probably means _____. [ ]

A. the two long parts of your body that your feet are joined to

B. one of the parts of a football match that is played in two halves

C. a part of a long journey or process that is done one part at a time

D. one of the upright parts that supports a piece of furniture

3. What can you infer about China's relation with America in the third paragraph? [ ]

A. It will hurt China if the value of the dollar falls.

B. China will sell all its shares in US national debt.

C. China is US's overseas bank where US can borrow money.

D. China will not be the largest debt holder of US.

4. The author develops the passage mainly _____. [ ]

A. by cause and effect

B. by examples

C. by order in time

D. by comparison

李某和张某共同出资创办一个合伙企业，其中李某出资25万元，张某以其专利作价15万元出资，由于企业经营不善，出现较为严重的亏损，累计负债20万元。
根据以上资料，回答下列问题：

合伙制企业的优点表现在______。

A．企业寿命长

B．产权转让容易

C．信用能力较大

D．资金来源相对于单个业主企业较大