列车旅行速度
参考答案:
列车在区段内,每小时平均走行公里数称为列车旅行速度。
五位同学就周末的情况作了记录并拍了照片,请将照片和记录配对。
小题1:I had a great weekend. I went to the beach with my friends and we played volleyball there. It was tiring but fun!
小题2:I went to the beach with my friend John. We lay on the beach. The sun was shining. The sand was comfortable. We came back very late.
小题3:we had a nice time in the mountains. The weather was cool and cloudy. Just great for hiking.
小题4:My weekend wasn’t so good. I went to visit my best friend, but she was not at home. It was raining all day and I was cold and wet.
小题5:I had a great weekend. I visited my aunt. Iplayed with my friends in a swimming pool. It was very hot , but it was relaxing there.
发生腹部绞痛的原因
A.腹内脏器破裂B.腹膜炎症病变C.有管腔脏器的梗阻D.腹腔内出血E.腹壁创伤