A：∃x0∈R，x02+1＞0
B：∃x0∈R，x02+1≤0
C：∃x0∈R，x02+1＜0
D：∀x0∈R，x02+1≤0
The news came, as expected, __________ my cousin was chosen to be a foreign aid doctor to go to Africa where people are suffering a lot from aids.
今年5月12日是我国第七个“防灾减灾日”．下列做法不合理的是（ ）
