热衷于搞“形象工程”，而不着力解决老百姓的实际问题，这明显不符合 [ ] A．政

将阻值随温度升高而减小的热敏电阻Ⅰ和Ⅱ串联，接在不计内阻的稳压电源两端。开始时Ⅰ和Ⅱ阻值相等，保持Ⅰ温度不变，冷却或加热Ⅱ，则Ⅱ的电功率在

A．加热时变大，冷却时变小

B．加热时变小，冷却时变大

C．加热或冷却时都变小

D．加热或冷却时都变大

在传统农业社会中，人流、物流和信息流的运动半径很小。下列解释不确切的是

A．做到了“鸡犬之声相闻，老死不相往来”

B．绝大多数人口生活在相对封闭的环境中

C．土地是最重要的生产资料，居民流动性很小

D．传统农业社会建立在自给自足的小农经济基础上

下列关于债券价格报价的说法，正确的有( )。

A．我国从2002年3月25日起，国债交易采取净价交易方式

B．在净价交易方式下，应计利息根据票面利率按月计算

C．全价交易是以含有应计利息的价格报价，按全价价格进行交割

D．净价交易是以不含票面利息的价格报价，按净价价格作为交割价格

肠道手术的术前准备，下列哪项是错误的

A．术前4h禁水
B．术前1d流质饮食
C．前3d开始全身用抗生素
D．手术前12h禁食
E．停留胃管行胃肠减压

A patrol team of sea lions and dolphins featured in a large-scale military exercises being conducted by the U. S. and its allies in the Pacific Ocean. The machine (1) took part in simulated mine recovery and mine detection missions during the biennial Rim of the Pacific Exercise (RIMPAC) war games. The (2) started on June 19 and will run (3) Friday.
"There are a number of mechanical systems that work in those areas. (4) high-tech gadgets deployed by the military can’t (5) the natural skills of dolphins and lions," said Tom Lapuzza, spokesman for UN Navy’s Marine Mammal Program. Sea lions have "incredible good underwater (6) " and can dive down to 300 meters to catch a recovery line to a mine, he said. Dolphins use sonar to (7) mine.
Human beings have a long (8) of training animals to join the military. Horses have been the most widely-used animals (9) the recorded history of (10) . In early times, horses were used to (11) chariots or to (12) armored forces. With the development of modem weapons and motorized (13) , the use of horses for military purposes fell into (14) . (15) , horses were still used (16) by the German army during World War II for transporting (17) and equipment, including artillery.
During World War II, (18) with explosives strapped to their backs were used as anti-tank weapons. In other (19) , they were used for detecting mines. Some dogs were also used as messengers.
Other animals have also (20) in the military. Recorded history shows the use of elephants for military purposes as early as 1,100 B. C.. They were employed during World War II by both the Japanese army and the (21) .
There are records showing that over 100,000 reindeer were used by Finland to tow sleds during World War II. They carried the (22) to hospitals, brought supplies to the troops and moved heavy anti-tank weapons. It is well documented that oxen have been (23) used in war as improvised beasts of burden. During World War II, spiders were employed by the Allies to spin silk for (24) in cross-hairs on bomb scopes and other optical instruments. People also are finding that Vampire bats’ ability to use echolocation is very interesting as we (25) to learn how it works and it may benefit the army.