在全液压转向装置中，（）全液压转向器是由其转向液压缸推动双梯形机构的扇形板来实现转向

在适宜的条件下，测定光照强度对植物光合作用速率的影响。图甲表示实验组的装置；图乙表示在不同光照强度下由装置甲测得的植物叶片光合作用速率；图丙是该植物光合作用部分过程图解，其中A、B、C表示三种化合物，a、b表示两个生理过程。请据图回答。

(1)图甲中B瓶中的液体可能是一定浓度的________；若实验在开始之前U型管的C、D两管内有色液体液面等高，然后立即放置于强度为2千勒司的光照下1小时。则甲图中U型管的C、D两管中的液面位置情况是______________。

(2)图乙中光照强度为4Klx时每100cm²叶片每小时有机物(假设产物是葡萄糖)增重____________mg(保留1位小数)。F点以后，影响光合作用速率的因素可能是____________。

(3)若将甲图的A瓶植株除去，在B瓶中加入离体的叶绿体为实验材料，则在光照强度为8Klx时，每100cm²叶片每小时产生O_{2________}mg。

(4)图丙中的过程发生在叶绿体的________。若将植物突然转移到高温、强光照、干燥的环境中，叶片气孔将逐渐关闭，此时叶肉细胞内B物质含量的变化是____________。

(5)将该植物的一叶片置于恒温的密闭小室，调节小室的CO₂浓度，在适宜的光照条件下测定叶片光合作用的强度(以CO₂的吸收速率表示)，测定结果如图丁。若降低光照强度后重新测定，请在原图中用虚线表示出最可能的测定结果。

患者脘腹痞闷，纳呆呕恶，便溏不爽，肢体困重，渴不多饮，舌红，苔黄腻，脉濡数，宜诊为（）

A.肝胆湿热证

B.胆郁痰扰证

C.湿热蕴脾证

D.脾阳虚证

E.胃热炽盛证

B This wireless transmitter allows you to listen to music from your iPod/MP3 player, on your home or car stereo --- without any wires.

It acts like a miniature radio station, transmitting your music via the FM frequency to the nearest radio.

Simply plug the transmitter into the headphone hole of your MP3 player, select a frequency on the transmitter and then set your radio to that same frequency.

Then sit back and enjoy your digital music in full stereo sound wherever you are.

It Can be used with iPods, MP3 players, portable CD players, cassettes players, games consoles（控制台）or even your laptop computer whenever you want to hear full stereo sound from your radio. Features include:

·LCD display with background lighting （shows time/date/ temperature）

·Full FM frequency range, so you can select the best performing frequency

·Choose from 2 power supplies: 2 AAA batteries or car charger（adaptor provided）

·4 memory channels for storing best performing FM frequencies

·Frequency response: 100Hz – 15000Hz

The unit is wireless so there are no disorganized cables.It is lightweight and easy to carry.

Adds a whole new part to your MP3 experience!

Takes 2 AAA batteries（not supplied）.Click here to buy batteries for this product…

GIFT STATS: iPod/ MP3 Transmitter

Measures: 7.5 x 4.5cm

Packaging: Gift pack

We can deliver this item to the UK, Europe, and North America.

56. You may find the above advertisement __________.

A. in a newspaper          B. in a store window

C. in a website              D. on a company notice-board

57. What is iPod/MP3 Transmitter?

A. An MP3 player which allows you to enjoy music wherever you are.

B. A kind of equipment that allows you to enjoy music from your iPod/MP3 player.

C. A mini radio station transmitting your music via the FM frequency to the nearest radio.

D. A radio that receives music from your MP3 player.

58. From the advertisement above, we can learn that __________.

A. the product can be used with a lot of electronic equipment

B. the transmitter can only be powered by 2 AAA batteries

C. the unit has organized cables so it is light and easy to carry

D. this item can be delivered to any place around the world

女性，64岁，曾被诊断为“轻型”糖尿病，用饮食管理即能控制血糖在“正常范围”，近10天因口齿不利，在外院诊断为“脑血管意外”，昏迷2天后转入本院治疗

在本院急诊室考虑患者为某一种糖尿病昏迷，在鉴别诊断时，下列检查哪项应首先进行

A．头颅CT或MRI

B．糖化血红蛋白测定

C．动脉血气分析

D．血糖、电解质、肾功能检查

影响电力机车运行的力有哪些？