开立金穗商务卡需提供以下资料：（）。A．经中国人民银行核准的基本存款账户开户许可证

酶溶液加热时，随着时间的推移，酶的催化活性逐渐丧失。这是由于加热导致天然酶的构象去折叠。己糖激酶溶液维持在45℃12分钟后，活性丧失百分之五十。但是若己糖激酶与大量的底物葡萄糖共同维持在45℃12分钟，则活性丧失仅为3％。请解释，为什么在有底物存在下，己糖激酶的热变性会受到抑制？

肾性急性肾功能衰竭最常见的原因（）

A.急性肾小球性肾炎综合征

B.肾血管性疾病

C.严重的急性间质性肾炎

D.急性肾小管坏死

E.慢性肾脏疾病的急性发作

具有解表散寒、祛风止痛、通鼻窍、燥湿止带、消肿排脓功效的药物是（）

A.白芷

B.荆芥

C.防风

D.苍术

E.羌活

淡水硬骨鱼类调节肌体渗透压的机制是（）

A.肾小球数目少，通过鳃上排盐细胞加大排盐量维持

B.肾小球数目多，通过加大滤泌尿量和肾小管重吸收盐分维持

C.通过肾脏减少或加大排尿量保持血液中尿素浓度的平衡维持

D.通过直肠腺加大排盐量维持

Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an (6) from a friend who asks you to open it. This is what happens with Melissa and several other similar email (7) . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages (8) .

A. attachment B. packet C. datagram D. message

As administrators seek to block dangerous email attachments through the recognition of well-known (9) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users.Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (10) access to your network.