瘤状疙瘩积聚在白术药材上，占表面30％以上，被习称为（）
A.油点
B.朱砂点
C.合点
D.花点
E.花子
参考答案：E
Children get tired of learning often because they _____ to do better than they can both at school and at
home.[ ]
A. hope
B. are hoped
C. expect
D. are expected
安全质量标准化对采煤工作面安全出口有什么规定？
