计算机病毒的破坏性体现在______。
A. 占用系统资源
B. 降低了计算机的工作效率
C. 破坏了计算机中的数据
D. 其他答案都对
一定量的药物及适当的辅料制成均匀的粉末或颗粒,填装于空心硬胶囊中而制成的是
A. 硬胶囊
B. 较胶囊
C. 肠溶胶囊
D. 胶囊
E. 滴丸
I want to have some ______, please.
A. potatos
B. tomato
C. oranges
To make friends and communication is very important to teenagers.
A. Right.
B. Wrong.
C. Doesn't say.