由于蒙古国用电负荷较低，风电和太阳能发电待开发量几乎全部可以外送。

花粉粒圆球形，表面近光滑的是（）

A.红花

B.西红花

C.洋金花

D.蒲黄

E.丁香

起动注意信号为（）。

A、一长声

B、二长声

C、一长二短声

D、一长三短声

擅自开办医疗机构行医给患者造成损害的（）。

A.责令暂停6个月以上1年以下执业活动

B.吊销执业证书

C.追究刑事责任

D.罚款

E.承担赔偿责任

目前所知最早的江南丝竹乐集社组织为在上海建立的（）。

A.钧天集

B.清平集

C.雅歌集

D.文明雅集

"In the long run," as John Maynard Keynes observed, "we are all dead. " True. But can the (1) run be elongated in a way that makes the long run (2) And if so, how, and at what cost People have dreamt of (3) since time immemorial. They have sought it since the first alchemist put an elixir of (4) on the same shopping list as a way to turn lead into gold. They have (5) about it in fiction, from Rider Haggard’s "She" to Frank Herbert’s "Dune". And now, with the growth of (6) knowledge that has marked the past few decades, a few researchers believe it might be within (7) .

To think about the question, it is important to understand why organisms-people (8) -age in the first place. People are like machines: they (9) That much is obvious. However, a machine can always be (10) A good mechanic with a stock of spare parts can keep it going (11) . Eventually, no part of the (12) may remain, but it still carries on, like Lincoln’s famous axe that had three new handles and two new blade.

The question, of course, is whether the machine is worth (13) . It is here that people and nature (14) . Or, to put it slightly (15) , two bits of nature disagree with each other. From the individual’s point of view, (16) is an imperative. You cannot reproduce unless you are alive. A fear of death is a sensible evolved response and, since (17) is a sure way of dying, it is no surprise that people want to stop it in its tracks. Moreover, even the appearance of ageing can be (18) . It (19) the range of potential sexual partners who find you attractive-since it is a sign that you are not going to be (20) all that long to help bring up baby-and thus, again, curbs your reproduction.

16（）

A.living

B.survival

C.death

D.reproduction