按保险期限分类，旅游保险属于( )。A．单纯意外伤害保险 B．多年期意外伤害保险

阅读理解。

      Wang Wei is a student of Grade Seven. He usually gets up at a quarter past six in the morning. At half past

six, he takes exercises (做运动). After that, he has breakfast and then goes to school. At about eight o'clock, he

gets to school and then reads English loudly. They have five classes in the morning. At about twelve o'clock, he

has lunch at school. Classes begin at two o'clock in the afternoon. Now they're having a P.E. class. Wang Wei is

good at playing soccer. After school he likes to go to the gym. He plays soccer with his classmates there. He

usually goes home at about half past five. Wang Wei often has supper with his parents at home. Sometimes they

eat in a restaurant (餐馆). After supper he goes skating. He likes reading novels very much. At about nine

o'clock, he goes to bed.

1. Wang Wei usually gets up at _____ in the morning. [ ]

A. 5:15

B. 5:45

C. 6:45

D. 6:15

2. Wang Wei has ______ classes in the morning. [ ]

A. 6

B. 4

C. 5

D. 3

3. Wang Wei is good at ______. [ ]

A. football

B. reading novels

C. playing basketball

D. playing soccer

4. Wang Wei usually has supper at _______. [ ]

A. school

B. home

C. at school

D. a park

5. Wang Wei usually goes to bed at ______. [ ]

A. about 9:00 a.m.

B. about 9:00 p.m.

C. about 10:00 p.m.

D. about 10:00 a.m.

若将一异或门（输入端为A、B）当做反相器使用，则A、B端应（）连接。

A．A或B中有一个接1

B．A或B中有一个接0

C．A和B并联使用

D．不能实现

关于菌痢的病理改变正确的是（）。

A.黏膜充血、水肿、中性粒细胞和巨噬细胞浸润

B.粘膜下层、肌层、浆膜层有明显的炎症反应

C.假膜主要为纤维素、坏死的肠粘膜、细菌、嗜中性粒细胞及红细胞等，部分有脱落

D.整个肠粘膜有假膜覆盖，粘膜上皮及腺体大片消失

E.大约一周左右，假膜开始脱落，形成大小不等，形状不一的“地图状”溃疡如图

下丘脑-神经垂体（垂体后叶）功能减退引起（）

A.巨人症

B.肢端肥大症

C.垂体性侏儒

D.席汉综合征

E.尿崩症