用10倍的放大镜看一个36°的角,这个角就变为360°.______.
用10倍的放大镜看一个36°的角,那么看到的仍然是36°的角;
故答案为:错误.
支气管哮喘发作时,最常见的血气分析改变是()
A.pH值上升,PaCO2下降,PaCO2降低
B.pH值上升,PaCO2下降,PaCO2上升
C.pH值下降,PaCO2下降,PaCO2降低
D.pH值下降,PaCO2下降,PaCO2上升
E.pH值正常,PaCO2下降,PaCO2上升
句型转换。
1. Lily can play the piano. (改为否定句)
Lily _____ _____ the piano.
2. Little Mary can play basketball. (改为一般疑问句)
_____ little Mary _____ basketball?
3. They are from the Beijing International School. (对画线部分提问)
_____ _____ they _____?
4. Can Betty speak English? (作肯定回答)
_____, she _____.
5. Can Tony and Nick swim? (作否定回答)
No, _____ _____ .