对口服药品规定检查致病菌以哪一种为代表（） A.沙门氏菌 B.金黄色葡萄球菌 C.螨

阅读理解，并回答下列问题。

      Basketball players are usually very tall. Because they need to put the ball into the basket. Other sports

players may be shorter than them.

      Short people often have better balance (平衡) than tall people, so they don't fall over very often. In

some sports the players must have good balance, for example, table tennis, they don't need to have long

legs to run fast! Some of the fast runners in the world are not very tall. Some people are tall and some are

short. The tallest man in the world is 2.41 meters tall. Today young people in many countries grow taller

than their parents. This is because they eat better than their parents. Good food can help children grow.

1. Are all sports players tall?

   ________________________________

2. Is it better to be short than to be tall?

   ________________________________

3. Do fast runners all have long legs?

   ________________________________

4. How tall is the tallest man in the world?

   ________________________________

5. Why do young people grow taller than their parents?

   ________________________________

原发性痛经，正确的是下列哪些（）。

A.多见于青春期少女

B.行经第1天疼痛最剧，持续2～3天缓解

C.疼痛部位在耻骨上，可放射至腰骶部

D.妇科检查生殖器官常有异常发现

E.痛经伴发恶心、呕吐

如图所示，电动机带着绷紧的传送皮带始终以υ₀=2m/s的速度运动，传送带与水平面的夹角为30°，现把某一工件轻轻地放在皮带的底端，经过一段时间后，工件被送到高h=2m的平台上，在此过程中电动机由于传送工件多消耗的电能为420J．已知工件与皮带间的动摩擦因数μ=

3

2

，除此之外，不计其他损耗，g=10m/s²，求：（1）工件从传送皮带底端运动到顶端所用的时间；（2）此工件的质量为多少．

下列各项行为中，属于代理的是：

A．张三委托小马，今天晚上把他的孩子从幼儿园接回来

B．李四受王五委托，以王五的名义与张三签订买卖合同

C．马某受陈某委托，将陈某不接受第三人孙某缔约要求的意思表示向孙某做了表示

D．甲公司由法定代表人李某与乙公司签订购销合同

张载曾庄严宣告“为天地立心，为生民立命，为往圣继绝学，为万世开太平”；顾炎武在明清易代之际发出“天下兴亡．匹夫有责”的呼吁。二者的相同点是（）

A.强调社会责任感

B.提倡知行合一

C.构建新儒学体系

D.重建伦理秩序