人体内含AST活性最高的器官是()
A.肝脏
B.脑
C.心
D.肾脏
E.肠
参考答案:C
The moment the 28th Olympic Games _______ open, the whole world cheered. [ ]
A. declared
B. have been declared
C. have declared
D. were declared
方坯普通质量非合金钢和低合金钢不得有深度大于()的裂纹,不得有深度或高度大于()的划痕、压痕、擦伤、气孔、冷溅、皱纹、凸块、凹坑。