露天矿台阶的构成要素有上部平盘、下部平盘、台阶高度、台阶坡面、台阶坡面角、台阶顶底线、()。
参考答案:台阶坡底线
You ___ go to the shop.There are quite a few eggs in the fridge.
A.don’t have to
B.have to
C.needn’t to
D.don;t need
符合单纯性热性惊厥的是()
A.惊厥<10分钟
B.反复多次惊厥
C.体温>39℃
D.强直阵挛性发作
E.脑电图无明显异常