维生素K不能用于（）
A.严重肝硬化
B.双香豆素过量
C.继发性凝血酶原缺乏
D.新生儿出血
E.梗阻性黄疸
参考答案：A
看课程表，填写单词。
1. It's 2: 25. It's time for ______________ class.
2. It's eight twenty. It's time for ______________ class.
3. It's 10: 55. It's time for ______________ class.
4. It's nine ten. It's time for ______________ class.
5. It's 10: 05. It's time for ______________ class.
什么是测试？简述测试技术的含义。
