如图：已知AB=10，点C、D在线段AB上且AC=DB=2； P是线段CD上的动点，分别以AP、PB为边在线段AB的同侧作等边△AEP和等边△PFB，连接EF，设EF的中点为G；当
I have kept that photograph ________ I can see it every day, as it always reminds me of my university days in Beijing. A. which B. where C. whether D. when
My remarks were not ______ you，it’s Jack’s fault. A. referred to B. aimed to C. aimed at D. pointed to
109. ---What was the food like? ---___________________. A.Nothing special B. Special nothing C. Nothing specially
建国60周年献礼歌曲《国家》中唱到“一玉口中国＼一瓦顶成家＼都说国很大＼ 其实一个家……有了强的国＼才有富的家”。下列名言与该歌词所体现
中和热测定实验中，用50mL0.50mol/L盐酸和50mL0.55mol/LNaOH进行实验，下列说法错误的是（ ） A．改用60mL 0.50mol/L盐酸跟50mL 0.55 mol/L NaOH溶液进行反应
读右面的等高线地形图，完成题目：（2×3=6分） （1）A、B两条虚线中，表示山谷的是 ，表示山脊的是 。（2）A、B两条虚线中，容易集水
The fact has worried many scientists _____ the earth is becoming warmer and warmer these years. A. what B. which C. that D. though
