当处于自动报警状态时,若佩戴者相对静止多少秒后,发出预报警声以做提示这时可逆转?()
A.25秒
B.30秒
C.20秒
D.40秒
参考答案:C
3个月男婴,因生后顽固性便秘伴明显腹胀,常需灌肠通便后,腹胀方可缓解。经钡剂灌肠证实为先天性巨结肠。该病在婴儿期最严重的并发症为
A.肠梗阻
B.腹膜炎
C.肠穿孔
D.营养不良
E.小肠结肠炎
I shouldn’t let it bother me. It really doesn’t matter anyway. But it does bother me ! All those people are preparing to (21) a new century, a new millennium (千年) as well. And it just isn’t (22) ! Most of us schedule our lives by the Gregorian (23) . Our years are measured from the (24) of Christ. The first year of the first century is 1, or 1 A.D. The last year of that century is the year 100. Simple Yes! A century is 100 (25) long. A millennium is 1,000 years long, which is (26) ten centuries. Since the last year of the first century is the year 100, the first year of the (27) century is 101. Follow that pattern, century by century and you’ll get my (28) . The year 2000 is the last year of the twentieth century. After all, (29) thousand means twenty hundreds. Twenty hundred years means twenty centuries. The year 2000 is the (30) , the final, the one that’s still here, year of the twentieth century!!!! I know, I’m getting too (31) . But it isn’t fair, While most people will really be enjoying this coming (32) celebration, those of us in the know will be yawning. Everyone else will be (33) for the new millennium and we’ll be saying, "It’s not until next year." I don’t agree with the (34) , "Ignorance is bliss." But in this case, perhaps it’s (35) .
A.birth
B.death
C.life
D.date