依据《土地管理法》第八条规定,城市市区的土地属于( )所有。 A.城市市区 B.

题型:单项选择题

问题:

依据《土地管理法》第八条规定,城市市区的土地属于( )所有。

A.城市市区
B.集体
C.省、自治区
D.国家

考点:土地登记代理人考试土地权利理论与方法土地权利理论与方法
题型:单项选择题

氢氧燃料电池是符合绿色化学理念的新型发电装置。下图为电池示意图,该电池电极表面镀一层细小的铂粉,铂吸附气体的能力强,性质稳定,请回答

(1)氢氧燃料电池的能量转化主要形式是_______________,在导线中电子流动方向为__________(用a、b表示)。

(2)负极反应式为____________________。

(3)电极表面镀铂粉的原因为______________________。

(4)该电池工作时,H2和O2连续由外部供给,电池可连续不断提供电能。因此,大量安全储氢是关键技术之一。金属锂是一种重要的储氢材料,吸氢和放氢原理如下: 

Ⅰ.2Li+H22LiH

Ⅱ.LiH+H2O==LiOH+H2

①反应Ⅰ中的还原剂是____________,反应Ⅱ中的氧化剂是____________。

②已知LiH固体密度为0.82g/cm3。用锂吸收224L(标准状况)H2,生成的LiH体积与被吸收的H2体积比为

____________。

③由②生成的LiH与H2O作用,放出的H2用作电池燃料,若能量转化率为80%,则导线中通过电子的物质的量为___________mol。

题型:单项选择题

数控机床中将数控装置的指令信号变换和放大的单元称作()。

A.电机

B.CNC单元

C.数控单元

D.伺服单元

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女,21岁,3天来左膝关节肿胀。自幼于外伤后易出血不止,查体:皮肤黏膜未见出血及紫癜,出血时间:1min,凝血时间35min,凝血酶原时间正常,疾病分类应为()

A.纤维蛋白生成障碍

B.凝血酶生成障碍

C.血小板异常

D.凝血活酶生成障碍

E.血管壁功能异常

题型:单项选择题

格林巴利综合征肌电图改变最明显时间是

A.起病1周

B.起病2~3周

C.起病4周

D.起病5周

E.以上都不是

题型:单项选择题

In June 1985, two British mountaineers Joe Simpson and Simon Yates made the first-ever climb of the 21,000-foot snow-covered Siula Grande mountain in Peru. It was an exceptionally (26) job, but nothing compared to what was to (27) . Early in the process, Simpson (28) and broke his right knee. Yates could have (29) him but managed to find a way of (30) him down the mountains on a rope in a series of difficult drops. Then Simpson fell into a crevasse and Yates eventually had no (31) but to cut the (32) , completely convinced that his friend was now (33)

In his book on the (34) , Joe Simpson wrote:

(35) I looked at the distant moraines, I know that I must at least try I would probably (36) there among those rocks. If I died, well, that wasn’t so (37) , but I wouldn’t have (38) waited for it to happen. The (39) of dying no longer affected me as it had in the crevasse at first. I now had a chance to (40) it and struggle against it.

The survival of Yates himself was (41) . That Simpson somehow found a way of (42) out of the crevasse after 12 hours and then crawled and (43) himself six miles back to camp, (44) three days and might without food or drink, would be considered as a heroic fiction. But in fact it was so (45) .

40().

A. face

B. defeat

C. solve

D. consider

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