在世界上首次育成“籼型杂交水稻”,被誉为“杂交水稻之父”的是[ ]
A .钱学森
B .邓稼先
C .陈芳允
D .袁隆平
D
(14分)背景材料:长期以来,国有企业承担着职工养老、医疗、待业的多数费用,这一方面加重了企业的负担,削弱了企业在生产和经营上应有的职能;另一方面使那些建厂早、退休职工多的老企业背上了沉重的包袱,压抑了企业的生产经营积极性。为了更好地发挥企业应有的活力,需要新型社会保障制度的支撑。
评析:我国的社会保障水平越高,企业活力就越强。
用动词的适当形式填空
1. I (go) to the beach (swim) with my friends yesterday.
2. Tom____(enjoy)____(work)with people.
3. The students of Class One (wait)for their teacher now.
4. The little girl (have)a lot of fun____ (learn) Chinese last year.
5. Kate is a reporter. She often____ (sleep) in the day and____(work) at night.