题目： 肉桂粉末中可见A．石细胞壁厚，有的一面菲薄B．纤维长梭形，多单个散在C．油细胞类圆形或长圆形D．木栓细胞多角形，含红棕色物E．草酸钙针晶成束或零星散在于射线细胞中 答案： 参考答案：A,B,C,D,E
题型：选择题 "Is it all right if I keep this photo?" "_____"A. No, you don't. B. No, it shouldn't. C. I'm afraid not. D. Don't keep it. 查看答案
题型：选择题 He felt doubtful about _______ the city. [ ]A. to get around B. get around C. getting around D. whether go or not 查看答案
