His new car is different the old one. [ ]
A. on
B. in
C. to
D. from
答案：D
取两只大小相同的健康蝗虫，将甲的头部浸没在水里，乙的腹部浸没在水里，结果是（ ）
A．甲蝗虫先死
B．乙蝗虫先死
C．甲、乙两只蝗虫一起死
D．甲、乙两只都不死
人工打眼应遵守哪些事项？
