— They're 15 yuan.
A:How many is
B:How many are
C:How much is
D:How much are
我国历史上一次空前的大思想解放运动是( )
人体内的腺体都能分泌激素。(判断对错)
河北古称“燕赵”,山东则称“齐鲁”,湖北被称为“荆楚”,这些名称的历史渊源最早可上溯到( )