哪种药物可偶致视力模糊及中毒性弱视
A．对乙酰氨基酚
B．乙酰水杨酸
C．布洛芬
D．甲芬那酸
E．吲哚美辛
参考答案：C
免疫细胞产生、发育、分化成熟的场所是（）.
A.胸腺
B.淋巴结
C.脾
D.骨髓和胸腺
E.淋巴结和脾脏
_____earn more money for his new car, the young man has to work for three _____ hours in the evening.[ ]
A. In order to, extra
B. In order that, many
C. In order that, else
D. In order to, another
earn more money for his new car, the young man has to work for three _____ hours in the evening.[ ]