A:6
B:-6
C:5
D:-5
There is _______ "m" and _______ " u" in the word(单词) "computer".
选取生长正常的天竺葵叶片进行如图甲所示的光合作用实验:
①将此装置经黑暗处理一昼夜后,移至光下数小时,再将这三片叶取下,分别放入盛有酒精的小烧杯中,隔水加热,使叶绿素溶解到酒精中;
②用清水漂洗后放入培养皿中,分别向这三片叶上滴加碘液,观察三片叶是否变蓝.
请分析回答下列问题:
《朝花夕拾》中,起初鲁迅认为范爱农是怎样一个人?
–Listen! Someone is playing ______ piano.
–Wow! What beautiful music! I like it very much