下列喹诺酮类药物中，具有抗结核作用的是 A．环丙沙星 B．诺氟_爱下问搜题

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问题单项选择题

下列喹诺酮类药物中，具有抗结核作用的是

A．环丙沙星
B．诺氟沙星
C．依诺沙星
D．氧氟沙星
E．培氟沙星

答案

参考答案：E

解析：培氟沙星为广谱的抗菌药，尤其是对结核杆菌有效。

完形填空

完形填空（共20小题；每小题1分，满分20分）
My grandmother became a widow in 1970. Shortly after that, we went to the 21 shelter to pick out a dog to keep her 22 . Grandma decided on a little dog with a reddish-brown spot above each eye. 23 these spots, the dog was named Penny.
Grandma and Penny quickly became very 24 to each other, but that attachment grew much stronger about three years later 25 Grandma had a stroke（中风）. Grandma could no longer 26 , so when she came home from the hospital, she and Penny were 27 companions.
After her stroke, it became a real 28 for Grandma to let Penny in and out because 29 was at the bottom of a flight of stairs. So a mechanism（机械装置）using a rope and pulley（滑轮）was 30 from the door to a handle at the top of the stairs. Grandma just had to pull the handle to open and close the door. If the store was 31 Penny’s favorite dog food, Grandma would make one of us 32 Penny browned

beef with potatoes in it. I can remember   33 my grandmother by saying that she loved that dog better than she loved her family.
As the years passed, it was not 34 for Grandma and Penny to separate each other. If Grandma went to take her nap（打盹）, Penny stayed by her side until she 35 . As Penny aged, she could no longer jump up on the bed, so she   36 on the rug （垫子）beside the bed. If Grandma went into the   37 , Penny would walk along beside her, wait outside the door and accompany her   38 to the bed or chair. Grandma never went anywhere without her   39 companion by her side.
The time came when both my grandmother’s and Penny’s   40 were failing fast. After fifteen years of loving companionship, Grandma and Penny passed away within a few hours of each other.

A．In spite of

D．In front of

A．drawing attention to	B．making use of
C．breaking away from	D．making fun of

A．reading room

选择题

下列物质中，在组织细胞内能氧化分解为人体提供能量的一组物质是（　　）

①蛋白质②糖类③脂肪酸④氨基酸⑤无机盐⑥葡萄糖⑦维生素⑧水．

A．①②③④

B．①②③⑥

C．⑤⑦⑧

D．③④⑥