植物体内水分和无机盐的运输方向是[ ]
A．由根通过茎运输到叶和花
B．由气孔通过叶和花运输到茎
C．由茎向根和叶分别运输
D．由叶通过茎运输到根
答案：A
根据UICC1974年膀胱癌临床分期标准，T4A期是指
A．肿瘤局限于黏膜层
B．肿瘤侵及浅肌层
C．肿瘤侵及深肌层
D．肿瘤累及膀胱周围组织
E．肿瘤累及邻近器官组织
—Can you tell me ______?
—Two weeks ago. [ ]
A. how much the computer cost
B. who you made the toy for
C. how many CDs did you buy
D. when you bought the camera
