在千分尺中当微分筒旋转一圈时,测微螺杆就轴向移动______mm。
A.0.01
B.0.1
C.0.5
参考答案:C
Read and choose.选出正确答案。
1. 这是一只棕色的狗。 [ ]
A. This is a blue dog.
B. This is a brown dog.
2. 我喜欢汉堡、牛奶和三明治。 [ ]
A. I like hamburgers and milk and sandwiches.
B. I like hamburgers,milk and sandwiches.
3. 他在手指上戴帽子。 [ ]
A. He wears hats on his fingers.
B. He wear hats on his fingers.
4. 你最喜欢的学科是什么?[ ]
A. What’s your favourite subject?
B. What your favourite subject is?
5. What’s for dinner? [ ]
A. 晚餐准备好了吗?
B. 晚餐吃点什么?
下列消化液中,都能消化蛋白质的是
A.胆汁、胰液、肠液
B.唾液、胃液、胰液
C.胃液、胰液、肠液
D.唾液、胆汁、胰液.