多制式录像机在重放状态时，色度信号处理电路如图所示。该图只适用于（）。A、PAL制

Which of the following is Chinese?

A．She has curly hair and blue eyes.

B．She has blond hair and brown eyes.

C．He is tall and has blue eyes.

D．He has black hair and black eyes.

公安机关办理治安案件的期限，自受理之日起不得超过三十日；案情重大、复杂的，经上一级公安机关批准，可以延长（）。

A、三十日

B、六十日

C、九十日

D、一个月

阅读表达。(共5小题；每小题2分，共10分。)

Counterfeit (假的) medicines are a widespread problem in developing countries. Like other counterfeits, they look like real products. But counterfeit drugs may contain too little or none of the active ingredients (原料) of the real thing.

People do not get the medicine they need. And in some cases the counterfeits cause death. Twenty children in Bangladesh died last year after being given acetaminophen (醋氨粉). The medications contained ingredients that looked, smelled and tasted like the real thing. The medicine was produced by a local drug company that used a dangerous substitute to save money.

The problem with counterfeit medicines is especially bad in Africa, Asia and Latin America. The W. H. O. estimates that up to thirty percent of the medicines on sale in many of those countries are counterfeit.              . The W. H. O. says counterfeits make up less than one percent of the illegal drug market in countries like the United States, Canada, Japan, and New Zealand.

But the agency also says as much as fifty percent of the medicine sold on the Internet is counterfeit.

Much is being done to fight counterfeit drugs. Several companies are developing ways to make counterfeits easier to identify. And there are existing methods, like a machine that can quickly identify chemicals in pills to confirm if the pills are real. Other ideas include things like special tracking codes for drug packages. People could send a text message with the code and get a message back proving that what they bought is listed in a database. Some drug makers and other companies put three-dimensional images called holograms (条形码) on their products as a security device.

小题1: What advice can we get from Paragraph 4? (no more than 8words)

小题2: What is the main idea of the last paragraph? (no more than 10 words)

小题3: Complete the following statement with proper words. (no more that 4 words)

A local drug company produced counterfeit medicines by using dangerous substitutes        .

小题4: Fill in the blank in Paragraph 3 with a proper sentence. (no more than 10 words)

小题5: What does the underlined word “they” in Paragraph 1 refer to? (no more than 3 words)

下列哪项不是氧化亚氮抑制造血功能的机制（）

A.吸入氧化亚氮3天以上可出现骨髓损害

B.抑制组织细胞快速分裂

C.可引起网织细胞/白细胞减少

D.引起淋巴细胞胞质内空泡形成

E.可能是其代谢产物的毒性作用所致

PLC的中文含义是（）。

A.计算机；

B.微型计算机；

C.可编程逻辑控制器；

D.运算放大器。