玻璃体的基本病理改变是
A.液化
B.混浊
C.浓缩
D.出血
参考答案:A
You ______ to the party if you’re so busy.
A.don’t need come
B.not need coming
C.needn’t come
D.need not to come
堆载预压施工,范围允许偏差为()mm。
A、±50;
B、±80;
C、±100