教育在人的发展中发挥主导作用是无条件的。( )

以玉米为主食的地区人群易发生（）

A.坏血病

B.贫血

C.大骨节病

D.骨质软化症

E.癞皮病

There are some things humans can go without. We can lose a kidney or a lung, an arm or two and still live perfectly well. But some fish put us to shame. They can get by without stomachs.

One such fish is the stout longtom. The group it belongs to carries a more appropriate name: the needlefish. All needlefish lack stomachs. Their ancestors had them, but later they were lost.

The stout longtom can reach 1.3 meters in length, and lives near the sea surface. Like all needlefish, it can jump out of the water to escape its enemies. Tropical fishermen are sometimes injured by needlefish. In 1977, a 10-year-old Hawaiian boy was killed when a needlefish jumped through his brain. The longtom eats smaller fish. It teeth are not good at cutting fish into pieces, so it swallows fish whole.

Ryan Day from Australia and his colleagues wanted to know how the longtom digests its meaty meals without a stomach, so they ran some chemical tests about the fish.

Day’s results show that the longtom can consume food without the help of a stomach. It uses a special material called trypsin that can break down proteins without acid — although the approach is less efficient than using a stomach.

Because it’s a meat-eating animal, the longtom gets a lot of protein in its food, so it can afford this slightly less efficient system for absorbing it. Two plant-eating fish that Day studies actually had higher levels of trypsin in their body, as their food was low in protein.

Day thinks that the longtom and its stomachless relatives might actually have arrived at an energy-saving solution. He says that although the stomach is critical to many kinds of animal, the organ is “a fairly expensive organ to run”. This perhaps explains why some animals have got rid of theirs.

小题1:What does the underlined phrase “get by” mean?

A．Recover.

B．Fight.

C．Hunt.

D．Live.小题2:Ryan Day ran the chemical tests in order to find out how the longtom ______.

A．catches smaller fish in the water

B．digests the smaller fish in its body

C．can jump so high to escape its enemies

D．uses acid to break down the protein小题3:What plays a key role in the longtom’s digestion process?

A．Trypsin.

B．Acid

C．The stomach.

D．Protein in its body.小题4:Ryan Day’s results show that ______.

A．the longtom can make acid easily

B．the longtom often waste energy

C．the longtom’s high-protein food helps its unique way of consuming food.

D．meat –eating fish have higher levels of trypsin in their bodies than plant-eating fish

企业法人：是指具有符合国家法律规定的资金数额、企业名称、组织章程、组织机构、住所等法定条件，能够独立承担民事责任；经主管机关核准登记取得法人资格的社会经济组织。据此定义，下列属于企业法人的是( )。

A．村民赵某个人独资在村里建起的养鸡厂

B．宋先生和自己的妻子在商场承包的服装销售摊位

C．某濒临破产的国有拖拉机制造厂

D．某跨国公司派驻中国的业务联络办事处

某男，急性淋巴细胞白血病缓解后突然出现头痛不适，测脑压220mmH₂O，脑脊液蛋白增高，涂片可见幼稚淋巴细胞。鞘内给药选用下列哪项（）

A.地塞米松+柔红霉素

B.地塞米松+米托蒽醌

C.地塞米松+长春新碱

D.地塞米松+甲氨蝶呤

E.地塞米松+环磷酰胺

以利率或价格为标的，旨在发现银行间市场的实际利率水平、商业银行对利率的预期。这是指（）。

A.数量招标

B.价格招标

C.拍卖

D.竞价交易