题目

弹奏小提琴时，要使小提琴发出的声音听起来音调高些，应采取的措施是（） A . 调松琴弦 B . 调紧琴弦 C . 增加部分弦线的长度 D . 换用粗弦 答案：BDaniel asked ___, "What will I be in the future?" [     ]A. him B. herC. himself D. herself