问题
选择题
平面直角坐标系中，若过点P（-2，t）、Q（t，4） 的直线斜率为1，则t=（ ）
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答案
答案：A
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平面直角坐标系中，若过点P（-2，t）、Q（t，4） 的直线斜率为1，则t=（ ）
|
答案：A
| 用框中适当的短语完成句子。 | |
2. My sister is always ill, she _____ does exercise. 3. My parents went to work, so I had to _____ myself. 4. — _____ do you exercise? —Once a week. 5. If I study hard, I believe (相信) I can _____. 6. The young (年轻人) should _____ the old _____ some cleaning. 7. I am a student; I should do my homework _____. 8. I want to play basketball, _____ homework, I will finish it later. 9. It is time for computer, everyone wants to _____. 10. I _____ do my homework. |