蟑螂在没有食物和水的情况下能生存多久?
参考答案:
在断绝食物的情况下,可存活一个月,没有水的情况下可存活7——10天,由此可见,蟑螂耐饥不耐渴。
根据提示补全句子。
1. The four seasons are ___________________________.
2. This month has only 28 days. It's ______________.
3. The date of the New Year's Day is ______________.
4. The date of Children's Day is ______________.
5. This month is the third month in a year. It's ______________.
虎斑心的病变性质是
A.萎缩 B.玻璃样变性 C.心肌脂肪变性D.心肌脂肪浸润 E.变性