须知！上海市虹口区2020年4月成人自考专升本准考证打印及系统开通时间

小明的妈妈为确保孩子“不输在起跑线上”，入学之前就迫使小明学小学二年级的课程。这样做违背了儿童身心发展的哪一特征?（ ）

A.阶段性
B.不平衡性
C.互补性
D.个别差异性

The dog has always been considered man′s best friend.Always noted for being particularly?faithful in watching over children,he also has his place by the fireside,in the cow pasture,on the?sheep range(放牧区),and beside the hunter in forest.He is easy to train,works hard,and often?performs astonishing feats.And in the frozen polar regions he was once the principal motive power,before being lately displaced by the plane and helicopter.
Because he howls or whines in the presence of impending death,the dog was once thought to?have supernatural powers and believed to be capable of seeing gods and ghosts invisible to men.Actually,the.basis for these beliefs lies in the hound′s sensibility to people′s feelings and his superior?hearing ability and sense of smell,which enable him to detect signs hidden from human observation.His record of saving lives is outstanding,for he often gives warning of fire and other dangers not noticed by his master.
The dog′s major contribution,however,has been to medical research.Both his diet and his?structure are comparable to those of the human being,and so he has been the subject Of countless?demonstrations and experiments.Open-heart surgery has been made possible largely because of the?dog.But his sacrifice has repaid his own species as well by safeguarding it from rabies(狂犬病),distemper,and other diseases.

The article does not say whether the scientists′experiments with dogs have__________.

A.benefited animals other than dogs
B.served man
C.helped other dogs
D.contributed to medical knowledge

在我国，为人民服务作为一种多层次、多形式的道德规范是（ ）

A.对社会全体成员的共同要求
B.对少数先进分子的要求
C.对共产党员的要求
D.对领导干部的要求

请在第_____处填上正确答案。

A.turn off
B.turn on
C.set off
D.set on