因为作物生长期的原因，（）可作为救灾作物。 A.大豆 B.荞麦 C.大麦 D.小米

水位深、岸滩稳定、泥沙淤积量小、背后有山体屏障的海湾是（）的最佳位置。

A.内河港口

B.外河港口

C.海港

D.码头

如图是生态系统中能量流动模式图，其中L代表太阳总辐射，PG代表总初级生产量，PN代表净初级生产量，P代表呼吸量，把植食性动物真正吃掉的那一部分绿色植物叫做消耗量(C)，把因种种原因而未被吃掉的那部分绿色植物叫做未利用物质(NU)。消耗量(C)中的大部分被初级消费者同化了，这部分就叫做同化量(A)；消耗量(C)中的小部分未被消费者同化，而是通过消费者的消化系统和排泄系统排出体外，这部分则叫做粪尿量(FU) 。植食性动物的生产量属于次级生产量。单位时间( 如1a或1d)里植食性动物的同化量(A)叫做总次级生产量。总次级生产量中扣除植食性动物的呼吸量(R)，余下的就是净次级生产量(P)。根据上述模式图及有关信息，回答下列问题：

(1)用图中字母表示出相关的恒等式：_________；__________；__________。

(2)植物中的能量传递给植食性动物的效率是_________(用字母表示)，图示反映能量流动的特点是_____________。

(3)用于植食性动物生长、发育和繁殖的能量是图中的________________。

(4)植物能将L中的能量转换成稳定的化学能是由于叶绿体内含有_____________。

(5)植食性动物对植物的__________等方面有重要作用。

Questions from 31 to 35 are based on the following passage: As overseas sales and profits as a percentage of total sales and profits increase, there is likely to be more headquarters’ attention paid to foreign operations. Similarly, there will be pressures to centralize control in order to deal with the growing number of global competitors and the more homogenized(同质的) needs of global consumers. The need for centralization will present more challenges for MNEs in controlling their global operations.One challenge involves management’s position in foreign facilities, where manager may see the erosion of their autonomy over marketing, production, and financial decisions. To keep those managers motivated, the company needs to include more nationalities on boards of directors and use cross-national management teams to develop practices that are globally rather than nationally oriented. But with such cross-national fertilization comes the risk of clashes between cultural traditions.A second challenge for MNEs is a consequence of their size. A number of them already have sales larger than many countries’ GDPs. To manage such organizations may require even greater decentralization and more horizontal communication among subsidiaries in different countries that are mutually dependent on parts, products, and resources. This mutual dependence among subsidiaries may in turn require new hierarchical relationships within the organizational structure.

The better a company’s overseas performance is, the more necessary for the company to（）.

A．centralize its overseas control

B．control its global operations

C．guard against its competitors

D．present more challenges to itself

晋末出现了我国现存的第一部外科专著是 （　　　）

A．《肘后备急方》

B．《刘涓子鬼遗方》

C．《金匮要略》

D．《内经》

E．《诸病源候论》