【判断题】中国兰是兰科兰属的多年生草本植物,又名草兰,山兰,等。
【多选题】下面关于儿化韵的说法正确的是
A.
“儿化韵”指后缀“儿”与其前面音节韵母结合成的音节
【多选题】当今世界,有不少国家通过一些论调来抹黑“一带一路”建设,其中包括( )。
【单选题】Not only _______ snacks and drinks, but _______ cards for entertainment when they had a picnic in the forest.
A.
they brought; they also brought
B.
did they bring; they also brought
C.
brought they; did they bring
D.
did they bring; did they also bring
【单选题】牛,2岁,胃肠道大肠杆菌感染导致下痢,连续20天使用土霉素治疗,最有可能发生的不良反应是()
【简答题】对于加速度(抛物线)信号输入,若希望稳态误差为0,则系统开环通道中至少需要( )个积分环节。