对于国际市场融资能力强的国家，可以适当（）国际储备的数量。A、增加 B、减少 C、维持不

在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，词首字母已给。

Teenagers are always stressed out now. They are often too busy to think about their diets and exercise. The truth is, healthy eating, along with regular exercise. Is the only way to k___83_fit.

During your teenage years, it is important to give your body the energy it needs. Teenager girls need about 2,200 calories(卡路里)a day and boys need a bit more. Doctors suggest 2,800 calories for teenage boys. 50% of your calories should come f  84  rice, bread, vegetables and fruit. You also need to d  85 a lot of water, six to eight glasses a day. Enough water will improve your skin and give you healthy hair.

Exercise can help to make you look good, feel good and be healthy. Scientists suggest that teenagers should spend at l  86  30 minutes exercising every day.

When you exercise, your body produces something. It makes you feel r  87  and energetic. It can even help you sleep better at night and let you pay more a  88  when you study.

Let’s eat healthily and take regular exercise.

答案：小题1: k_______ 小题2: f _______ 小题3: d _______

小题4: l _______ 小题5:r _______ 小题6: a _______

某课外小组的同学自制了一只电烙铁，额定电压是220V，在额定电压下工作时的电阻是1210Ω，它的额定功率为 ______W，在额定电压下通电10min产生 ______J热量．

《中国药典》一部中规定检查膨胀度的药材是（）

A.蛇床子

B.补骨脂

C.女贞子

D.葶苈子

E.马钱子

航天英雄聂海胜，这是一个传遍世界的名字。虽然聂海胜的母亲重病在床，家境并不富裕，但是，他拒绝了家乡政府和他人的捐赠。这告诉我们 [ ]

①聂海胜具有自强不息的宝贵品质

②聂海胜勇于奉献，不言代价与回报的精神是中 * * 奋发图强的象征

③聂海胜面对责任不言代价与回报的精神，值得我们中学生学习

④实现人生价值，靠的是坚定正确的人生方向和艰苦奋斗的精神 

A．①②④

B．①②

C．③④

D．①②③④ 

关于网膜孔的描述错误的是（）。

A.上界是肝尾状叶

B.下界为十二指肠上部

C.后界为下腔静脉前面的腹膜

D.前界为肝十二指肠韧带

E.是小网膜与腹腔相通的孔