关于染色质小体，错误的说法是（）。 A.可能是细胞在分裂过程中出现的一种异常染色质

Why is (71) fun What delights may its practitioner expect as his reward First is the Sheer joy of making things．As the child delights in his mud pie，So the adult enjoys building things，especially things of hid own design．Second is the pleasure of making things that are useful to other people．Third is the fascination of fashioning complex puzzle-like Objects of interlocking moving parts and Watching them work in subtle cycles，playing out the consequences of principles built in from the beginning．Fourth is the joy of always learning， Which Springs from the (72) nature of the task．In one Way or another the problem id ever new, and its solver learns something：sometimes (73) ，sometimes theoretical，and sometimes both．Finally there is the delight of Working in such a tractable medium．The (74) ，like the poet，works only slightly removed from pure thought-stuff. Few media of creation are so flexible，so easy to polish and rework，so readily capable of realizing grand conceptual Structures． Yet the program (75) ，unlike the poet's words，is real in the sense that it moves and works，producing visible outputs separate from the construct itself．It prints results，draws pictures，produces sounds，moves arms．Programming then is fun because it gratifies creative longings built deep Within us and delights sensibilities we have in common With all men．

（75）处填（）。

A．construct

B．code

C．size

D．scale

有免疫调节作用的头孢菌素类药物是（）

A.头孢地嗪

B.头孢匹罗

C.头孢曲松

D.头孢米诺

E.头孢他啶

SWIFT信用证开证格式，在信用证开端标着MT700，MT701代号。

在Visual FoxPro中，删除数据库的所有记录，仅保留库结构的命令是（）。

A、delete all

B、pack

C、recall

D、zap

非感染性发热可见于（）。

A.风湿热

B.脑出血

C.心力衰竭

D.恶性肿瘤

E.支气管肺炎