锅炉内部检验时发现影响锅炉安全运行的缺陷，必须对缺陷部位进行处理，则锅炉内部检验结论

函数y＝3x²＋2(a－1)x＋b在区间(－∞，1)上是减函数，那么(　)

A．a∈(－∞，－1)

B．a＝2

C．a≤－2

D．a≥2

补写出下列名篇名句中的空缺部分。

（1）曾子曰：“士不可以不弘毅，______________。______________，不亦重乎？死而后已，不亦远乎？”（《论语》）

（2）小知不及大知，______________。奚以知其然也？______________，蟪蛄不知春秋，此小年也。（《庄子·逍遥游》）

（3）山气日夕佳，______________。此中有真意，______________。（陶渊明《饮酒》）

信用证是一种自足文件，信用证的当事人（）

A、只受合同条款的约束，不受信用证条款的约束

B、不受合同条款的约束，只受信用证条款的约束

C、受合同条款和信用证条款的约束

D、不受合同条款和信用证条款的约束

Even plants can run a fever, especially when they are under attack by insects or disease. But (1) humans, plants can have their temperature (2) from 3,000 feet away—straight up. A decade ago, (3) the infrared scanning technology developed for military purpose and other satellites, physicist Stephen Paley (4) a quick way to take the temperature of crops to determine (5) ones are under stress. The goal was to let farmer (6) target pesticide spraying (7) rain poison on a whole field, which (8) include plants that don’t have the pest problem.

Even better, Paley’s Remote Scanning Services Company could detect crop problem before they became (9) to the eye. Mounted on a plane flown at 3,000 feet (10) , an infrared scanner measured the heat emitted by crops. The data were (11) into a color-coded map showing (12) plants were running "fevers". Farmers could then spot spray, using 50 to 70 percent less pesticide than they (13) would.

The bad news is that Paley’s company closed down in 1984, after only three years. Farmers (14) the new technology and long-term backers were hard (15) . But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to (16) into operation. Agriculture experts have no doubt about the technology works. "This technique can be used (17) 75 percent of agricultural land in the United States," says George Oerther of Texas A＆M. Ray Jackson, who recently retired from the Department of Agriculture, thinks (18) infrared crop scanning could be adopted by the end of the decade. But (19) Paley finds the financial backing (20) he failed to obtain 10 years ago.

11（）

A.transmitted

B.transferred

C.transformed

D.transported

含有2个羧基的氨基酸是（）

A.丝氨酸

B.酪氨酸

C.谷氨酸

D.赖氨酸

E.苏氨酸