算法的基本特征是可行性、确定性、______和拥有足够的情报。

小便不通、短少、色清，面色晦滞，畏寒怕冷，下肢欠温，腹泻，多属（）

A.肾阳虚衰，气不化水

B.脾肾亏虚，湿热内蕴

C.肾病及心，邪陷心包

D.肝肾阴虚，肝风内动

E.脾肾阳虚，寒湿内蕴

X线摄片检查心脏呈靴形，常见于（）。

A.二尖瓣狭窄

B.二尖瓣关闭不全

C.三尖瓣关闭不全

D.主动脉瓣狭窄

E.三尖瓣狭窄

从支出方面统计GDP(支出法)，国内生产总值(GDP)等于( )的汇总。

A．消费

B．投资

C．政府购买

D．来自国外的要素收入

E．净出口

朱某原是大鹏公司的采购员，已辞职。某日，朱某接到大鹏公司的进出口业务代理商某粮油进出口公司的电话，称该公司代理进口的3000 吨特级糖蜜因买主某食品厂急需资金欲低价转卖，大鹏公司如有意购买，务于晚饭前回复。朱某紧接着就打电话找大鹏公司经理，经理正出差，要晚上才回来。朱某赶到粮油公司，说货物大鹏公司要了。粮油公司不知朱某已辞职，就与其签了合同，并说糖蜜存放在仓库，你们把货款和仓储费付清，我们把仓单背书给你。朱某当晚带着已签好的一式两份合同和糖蜜的样品，找到大鹏公司的经理。经理看了合同和样品后，在合同上签了字，并要朱某第二天到公司盖章。大鹏公司将钱款付清后，拿着仓单到仓库提货，在验货时发现是一级糖蜜，就未取货。原来粮油公司怕大鹏公司不能及时付款，把那批特级糖蜜给了别人。这批一级糖蜜合同上订的也是特级，口岸验收时商检局发现货轮有轻度污染，就给降了一级，由特级改为一级。

根据案情，请分析下列问题：

（1）朱某与粮油公司签订合同时，其行为性质应如何认定？

（2）大鹏公司经理在合同上签字之前，粮油公司能否主张朱某的代理是无效的？

（3）如果大鹏公司经理没有在合同上签字，朱某与粮油公司签订的合同是否有效？

阅读表达。

阅读下面的短文，并根据短文后的要求答题。(请注意 注意后的字数要求)

     [1]Why play sports? You might say "to get exercise" and you'd be right. To have fun? That's true,

too. But there's more. In fact, there are at least 5 more reasons. According to the Wonmen's Sports

Foundation, girls who play sports get a lot more than just fit.

     [2]Girls who play sports do better in school. You might think that athletics wi1l take up all your

study time. But research shows that girls who play sports do better in school than those who don't.

Exercise improves learning, memory, and concentration, which can give active girls an advantage in the

classroom.

     [3]Girls who play sports learn teamwork and goal-setting skills. Sports teach valuable life skills. When you work with coaches, trainers, and teammates to win games and achieve goals. you're learning

how to be successful. Those skills will         at work and in family life.

     [4] Sports are good for a girl's health. In addition to being fit and maintaining (维持) a healthy

weight, girls who p1ay sports are also less likely to smoke. And later in life, girls who exercise are less

likely to get breast cancer or osteoporosis (骨质疏松).

     [5]Playing sports builds self-confidence. Girls who play sports feel better about themselves. Why?

It builds confidence whe11 you know you can achieve your goals. Sports are also a feel-good activity

because they help girls get in shape. maintain a healthy weight. and make new friends.

     [6] Exercise cuts the pressure. Playing sports can reduce stress and help you feel a little happier.

How? The brain chemicals released during exercise improve a person's mood. Friends are another

mood-lifter. And being on a team creates tight bonds between friends. It's good to know your

teammates will support you-both on and off the field!

1. What's the main idea of the text? (no more than 8 words)

2. List three advantages that exercise can give you when you are in school. (two

words for each)

(l)                        (2)                        (3)                        

3. Fill in the blanks in Paragraph 3 with proper words.(no more than 5 words)

4. Translate the underlined sentence in Paragraph 5 into Chinese.

5. What can lift your mood while playing sports? (no more than l5 words)