多级内燃机油温高剪切的粘度一般不小于（）mpa•s。
A.3～3.5
B.3～4
C.3.5～4
D.4～4.5
参考答案：A
下列选项中，不属于针刺单式补泻手法的是（）
A.提插
B.迎随
C.徐疾
D.开阖
E.烧山火
句子改写。
请按要求变换句型，每空一词。
1. My hair is black.(就划线部分提问).
__________ __________ is your hair?
2. He looks young.(就划线部分提问)
__________ __________ he look like?
3. She has two short arms.(改为否定句)
She __________ __________ two short arms.
4. We are from Cuba. (改为一般疑问句)
__________ __________ from Cuba?
5. His father is fine.(就划线部分提问)
__________ __________ his father?
