Amniocentesis can reveal whether a fetus i

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问题填空题

Amniocentesis can reveal whether a fetus is suffering from any of a variety of chromosomal defect.

答案

参考答案：defect→defects

解答题

已知一次函数图象经过点（3，5），（﹣4，﹣9）两点．

（1）求一次函数解析式．

（2）求图象和坐标轴交点坐标．

（3）求图象和坐标轴围成三角形面积．

（4）点（a，2）在图象上，求a的值．

填空题

短文填词。

A couple of months ago, I asked to go to Wuxi. With my parents' 1.________ (许可), I went there by bus

and visited lots of beautiful parks. 2.________ impressed me most was the visit to the Taihu Lake. Never

3. ________ I seen such a large lake in my life. I boated on the lake and walked 4. t ________ the parks along

the shore. The air 5. ________ so fresh, the flowers were so charming and the stone were so beautiful. I

6. ________ (爬) the high HuiHills. Each step I took brought me 7. c________ to the top of the hill. What

beautiful sights and waters! I was 8. ________ (吃惊) to see wild geese playing joyfully 9. a________ the

waters of the Wuhu Lake. I enjoyed my trip 10. ________ much that I even didn't want to leave when my

holiday ended.