伤寒最严重的并发症是
A.中毒性脑病B.肠穿孔C.急性胆囊炎D.肠出血E.肺炎
参考答案:B
阅读理解。
My name is Sally White. I am a schoolgirl. My school is far from my home. Every day it takes me a
lot of time to get there. The road is not flat, so I cannot go to school by bike. I often go there by bus or
on foot. It takes me thirty minutes to get there by bus and an hour on foot. I must get up very early every
morning. I have no time for breakfast at home. I often have something for breakfast on the way or on the
bus. I don't want to be late for school, so sometimes I run to school.
1. What is Sally White?
2. How does Sally often go to school?
3. How long does it take Sally to go to school on foot?
4. Does Sally have breakfast at home?
5. What does "flat" mean in Chinese?
读美国农作物带图,结合所学知识回答小题。
小题1:图中表示的农作物带分别是
A.①冬小麦带②春小麦带③玉米带④乳畜带
B.①春小麦带②冬小麦带③玉米带④乳畜带
C.①冬小麦带②春小麦带③乳畜带④玉米带
D.①春小麦带②冬小麦带③乳畜带④玉米带小题2:③农作带形成的区位条件是
A.土壤肥沃,降水较少
B.气候湿冷,无霜期短
C.靠近美国东北部工业区,市场需求量大
D.无霜期较长,降水量较多小题3:下列做法中,不利于美国农业可持续发展的是
A.限耕和休耕
B.苜蓿与玉米轮作
C.大量使用化肥、农药
D.实行农产品价格补贴