如果某风险经理认为,某幢装有自动喷洒装置和防火墙的大楼在发生火灾时,其损失不会超过楼房价值的30%,则该大楼的最大可能损失就是其价值的70%。()
参考答案:错
—What a clean (干净的) room it is today!
—Oh, yes! Who _____ it?[ ]
A. is cleaning
B. will clean
C. has cleaned
D. had cleaned
昆虫最主要的生殖方式是两性生殖和孤雌生殖良种。