选择题：53. 心室容积最小在( )(本题1.0分)A、 等容收缩期末B、 快速射血期末C、 减慢射血期末D

8. Not until you finish your work __ go home.(本题2.0分) A、 can you B、 you can C、

8. Not until you finish your work__ go home.(本题2.0分) A、 can you B、 you can C、

6、(单选、2.5分)下图的刚性路面交叉口属于（　　）。A、T字形交叉口B、Y字形交叉口C、复合交叉口D、X字形交叉口

12. (阅读理解题)Section B A rapid means of long-distance transportation became a nece

5. __ wants to stay in a hotel has to pay their own way.(本题2.0分) A、 Anyone B、 T