梗死扩展
参考答案：
梗死扩展是指梗死区急性被动性扩张和变薄，但无新的坏死心肌增加。
The little girl who got lost decided to remain _________she was and wait for her mother.
A．where
B．what
C．how
D．who
采用钢桶装载液体危险货物，对于采用Ⅰ类包装的，其最大容积为____升。
A.200
B.250
C.300
