四大发明中,由古代炼丹家发明的是[ ]
A.造纸术
B.指南针
C.火药
D.印刷术
答案:C
根据提示完成句子,每空一词
1. A: What's that in English?
B: It's a _____ (书).
2. A: What's this on the desk?
B: It's a _____ (录音磁带).
3. A: Where's your _____ (包)?
B: It's on the bed.
4. Who's that _____ (女孩)?
面部痛觉减退()。
A.滑车神经损害
B.动眼神经损害
C.三叉神经损害
D.外展神经损害
E.面神经损害