长沙市对凡不能完成节能目标管理任务的单位，实行什么考核制度？

红霉素的抗菌作用机制是

A．抑制细菌细胞壁的合成

B．抑制DNA的合成

C．与30S亚基结合，抑制蛋白质合成

D．与50S亚基结合，抑制蛋白质合成

E．抑制二氢叶酸合成酶

B The Beatles甲壳虫乐队
The English rock music group The Beatles gave the 1960s its characteristic musical flavor and (1) a profound influence on the course of popular music, equaled by (2) performers. The guitarists John Winston Lennon, James Paul McCartney, and George Harrison; and the drummer Ringo Starr, were all born and (3) in Liverpool. Lennon and McCartney had played together in a group called The Quarrymen. With Harrison, (4) formed their own group, The Silver Beatles, in 1959, and Starr joined them in 1962. As (5) Beatles, they developed a local following in Liverpool clubs, and their first recordings, "Love Me Do" (1962) and "Please Please Me" (1963), quickly made them Britain’s top rock group. Their early music was (6) by the American rock singers Chuck Berry and Elvis Presley, but they infused a hackneyed musical (7) with freshness, vitality, and wit.
The release of "I Want to Hold Your Hand" in 1964 (8) the beginning of the phenomenon known as"Beatlemania" in the United States. The Beatle’s first US (9) aroused a universal mob adulation. Their concerts were scenes of mass worship, and their records sold (10) the millions. Their first film, the innovative A Hard Day’s Night(1964), was received enthusiastically (11) a wide audience that included many who had never before listened to rock music．
Composing their own (12) , The Beatles established the precedent for other rock groups to play their own music．Experimenting with (13) musical forms, they produced an extraordinary (14) of songs: the childishly simple "Yellow Submarine" ; the bitter social commentary of "Eleanor Rigby" ; parodies of earlier pop styles; new electronic sounds; and compositions that were scored for cellos, violins, trumpets, and sitars, as well as for conventional guitars and drums. The (15) disbanded in 1970, after the release of their final album, Let It Be, and during the 1970s (16) individual careers, On dec.8, 1980, John Lennon (17) fatally shot outside his Manhattan apartment by Mark Chapman, a 25-year-old former mental (18) who, earlier that same day, had asked Lennon for his (19) . Lennon’s murder was universally (20) with an intensity of feeling usually inspired only by political and spiritual leaders.

男性，49岁。发热、咳嗽近2周，痰少，色偶黄，伴胸闷。2d来出现咯血就诊，多为满口鲜血，每日约450ml。体检：右上肺叩浊，呼吸音低，闻及湿啰音。胸片示右肺上叶实变伴空洞形成，空洞直径约2．5cm，洞壁光整，未见液平。

提问：本病例初步诊断首先考虑（）

A.真菌性肺炎伴脓肿形成

B.肺脓肿

C.肺癌伴癌性空洞

D.肺囊肿继发感染

E.肺结核

F.金葡菌肺炎

频谱多普勒技术检测多普勒血流时，下列哪项做法无意义

A．屏住呼吸B．调节滤波C．速度标尺D．取样容积大小
E．超声入射角校正

信号机灯光的调整主要是通过调整（）来实现的。

A、透镜组

B、灯泡的型号

C、灯架的位置

D、信号机的位置