题目

Greatly movedd by her words, ______ .    A.tears came to his eyes              B.he could hardly hold back his tears    C.tears could hardly be held back     D.his eyes were filled with tears. 答案：B某生在化学晚会上表演如下魔术：用毛笔蘸取一种无色液体在一张白纸上书写了“化学魔术”四字，然后再喷上一种无色液体，白纸上立即出现了红色的“化学魔术”四字。该生先后所用的无色液体可能是A．石蕊溶液、稀硫酸B．酚酞溶液、“雪碧”饮料C．NaOH溶液、酚酞溶液D．NaCl溶液、NaOH溶液