水带有水幕水带,80mm、65mm水带等多种型号规格。
参考答案:对
A common assumption about the private sector of education is that it caters only to the elite. (31) recent research points in the opposite direction. If we want to help some of most (32) group in society, then encouraging deeper private sector (33) is likely to be the best way forward. Several developments are (34) in India, all of which involve the private education sector meeting the (35) of the poor in distinct ways. (36) India is not unique in this respect—similar phenomena are happening all over the developing world. As a point of departure, how do government schools serve the poor Usefully, the government sponsored Public Report on Basic Education in India from 1999 paints a very (37) picture of the" (38) "of the government schools for the poor. When researchers (39) unannounced on their random sample of the schools, only 53% had any "teaching activity" going on. (40) , the team not- ed that the (41) of teaching standards has nothing to do (42) disempowered teachers, but instead could be (43) "plain negligence". They noted "several cases of irresponsible teachers (44) a school closed for months at a time". But is there any (45) to these schools Sorely no one else can do better than government (46) the resources available As it happens, the Report pointed to private schools that were serving the poor and (47) that such problems were not found in these schools. Most parents believed that private schools were successful because they were more accountable: "the teachers are account- able to the manager who can fire them, and, (48) him or her, to the (49) who can withdraw their children." Such accountability was not present in the government schools, and "this contrast is (50) with crystal clarity by vast majority of parents.\
A.desolate
B.bleak
C.ingenious
D.delicate
试述卖方电子商务采购模式和买方电子商务采购模式的优缺点。