认真阅读“给定资料”，简要回答下面两题。请从“给定资料”中提炼出商业贿赂造成的危害。

下列关于病毒错误的是（）

A.由单一核酸和蛋白外壳组成

B.属于原核细胞型微生物

C.体积微小

D.只能在活的细胞内生长繁殖

E.能通过滤菌器

An analyst does research about free cash flow to the firm and gathers the following information about a company:
·Cash flow from operations is $1600
·Interest paid is $300
·Capital expenditures is $900
·Depreciation is $200
·Tax rate is 35%
Under U. S. Generally Accepted Accounting Principles (U. S. GAAP), free cash flow to the firm is closest to:

A. $795
B. $895
C. $1095

下列关于阳离子表面活性剂的叙述错误的是

A.水溶性大

B.主要用于杀菌与防腐

C.起表面活性的部分是阳离子

D.在酸性与碱性溶液中不稳定

基站完工后工程督导要求提交的文档包括：基站完工照片与基站的硬件自检报告。

怎样检查抓斗？