青藏地区农业主要分布在 A．湟水、雅鲁藏布江谷地 B．青藏高原边缘 C．黄河、长江源头
Is he the only one of the students who ________ here just now ? A.is B.are C.was D.were
It was the last day of school and I planned to travel to my friend’s hometown. I hadn’t seen him for years and this was a good 1 to meet him again. I was busy at school so it was rather 2
阅读下面文言文，把文中划线的句子翻译成现代汉语。(8分) 楚人有习操舟者，其始折旋疾徐，惟舟师之是听。于是小试洲渚之间，所向莫不如意，
People in Sichuan province are determined to rebuild ____ was destroyed in the earthquake.A. that B. which C. how D. what
每个圆圈代表一个试管(口)，用两个圆圈相切表示试管中的两种物质在常温下能发生反应，请回答下列问题： (1)用两圆圈表示4(Fe2O3粉末)、5(稀盐酸)
下图是实验室用于制取某些气体的装置．试回答： （1）图中仪器e的名称是____________． （2）加入甲容器中液体的液面最低应至____________处（填“a”
