医院感染监测

The price ________, but I doubt whether it will remain so.

A．went down

B．will go down

C．has gone down

D．was going down

如图为部分食肉目动物的分类图解．由图中可知，与猫亲缘关系最近的动物是（　　）

A．豹

B．虎

C．犬

D．无法判断

终年降水少，不利于粮食作物的成熟，故新疆的小麦多从国内其他省区输入。[ ]

More and more residences, businesses, and even government agencies are using telephone answering machines to take messages or give information or instructions. Sometimes these machines give (1) instructions, or play messages that are difficult to understand. If you (2) telephone calls, you need to be ready to respond when you get a (3)

The most common machine is the (4) used in residence. If you call a home (5) there is a telephone answering machine (6) you will hear several rings and then a recorded message that (7) says something like this: "Hello. We can’t come to the (8) right now. If you want us to call you back, please leave your name and number after the beep." Then you will hear a "beep", (9) is a brief, high-pitched (10) . After the beep, you can say who you are, whom you want to speak to, and what number the person should call to (11) you, or you can leave a (12) . Some telephone answering machines record for only 20 or 30 seconds after the beep, (13) you must respond quickly.

Some large businesses and government agencies are using telephone answering machines to provide information on (14) about which they receive a large volume of (15) . Generally speaking, using these systems (16) you to have a touch-tone phone ( a phone with buttons rather than a rotary dial). The voice on the machine will tell you to (17) a certain button on your telephone if you want information on Topic A, another button for Topic B, and so on. You listen (18) you hear the topic you want to learn about, and then you push the (19) button. Immediately after making your (20) , you will hear a recorded message on the topic.

7（）

A．so

B．therefore

C．although

D．thus

房地产税收的征收环节中，其( )的税收相当于商品生产环节的税收。

A．交易环节

B．保有环节

C．流转环节

D．开发环节