右图为我国海南岛,据图中信息判断下列说法,正确的是( ) A.地势中间低,四周

题型:选择题

问题:

右图为我国海南岛,据图中信息判断下列说法,正确的是(      )

A.地势中间低,四周高

B.河流呈放射状流向四周海域

C.甲地降水比乙地多

D.海南岛属于亚热带季风气候

考点:中国的气候,季风
题型:选择题

You are what you eat

Keeping better eating habits can help you have less illness. A healthy eating plan means choosing the right food to eat and cooking food in a healthy way.

___________

Do you often change your toothbrush? Maybe you think it is unnecessary. A study shows old toothbrushes bring disease(病菌). You should often change your toothbrush.

Exercise

Swimming, cycling, jogging, skating, dancing, walking and some other activities can help you stay healthy. You should exercise at least three times a week and for twenty minutes or more each time. Do it!

Plan out your life

You should have breakfast before you go to school. Have a right meal for lunch. Follow a healthy diet.

小题1:What’s the passage mainly about?

A.Healthy food.

B.Healthy lifestyle.

C.Junk food.

D.Healthy sports.小题2:What is the best title for the second passage??

A.Man’s disease.

B.Disease.

C.Your toothbrush.

D.Your bathroom.小题3:How long should you exercise each time?

A.Twenty-five minutes.

B.Fifteen minutes.

C.Five minutes.

D.Ten minutes.小题4:From the passage, we know __________ can help us stay healthy.

A.right diet

B.exercise and right diet

C.sleep

D.exercise小题5:What does a healthy plan mean?

A. Choosing the right food.             B. Cooking the food in a healthy way.

C. Never eat meat or fresh vegetables.      D. Both A and B.

题型:选择题

简述Ⅱ级B1型生物安全柜的性能特点。

题型:选择题

患者女性,40岁,石油化工工人,长期与苯接触,近1年来全身乏力,查血红蛋白60g/L,血小板计数50×109/L,网织红细胞低于正常,肝脾不肿大,骨髓增生低下。

该患者不可能出现

A.贫血貌
B.皮肤瘀斑、瘀点
C.脾、淋巴结肿大
D.角膜溃疡
E.肺炎

题型:选择题

女,8岁。右下后牙酸甜刺激痛。检查:右下第一恒磨牙近中沟墨浸状,探针被卡住。此牙诊断是

A.浅龋

B.中龋

C.深龋

D.牙髓炎

E.根尖炎

题型:选择题

由于地质构造及水文地质条件的复杂,目前技术水平确实无法开采的局部地区的储量就称为实际的()及()损失。

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