直线2x+6y+3=0的倾斜角是（ ） A．30° B．60° C．120° D．150

信息传递已进入数字化时代，数字信号与模拟信号相比有许多优点，如 ______、______、______．

判断脊柱骨折脱位是否并发脊髓损伤，下列哪项检查最重要（）。

A.X线摄片

B.CT

C.MRI

D.神经系统检查

E.腰穿做奎肯试验及脑脊液生化检查

根据旬意及首字母提示补全单词。

1.I think in 100 years, people will study on computers, not on p___________.

2.People don't need to work at home. We can buy a r__________ to help with all the housework.

3.Be careful. I don't think everyone can do e_______ well this time.

4.Look at that new b         over there. We'll soon move into it.

5.F       people write with their left hand than with their right, do they?

A CFA charterholder is asked to review her firm’s soft dollar practices. As part of the review, she notes that her firm has failed to disclose the practices to the firm’s clients in writing as required by law. She does not report the firm’s violation to the appropriate regulatory authority, has the charterholder violated any CFA Institute Standards of Professional Conduct（）

A. No.

B. Yes, because she failed to act in the best interest of her employer.

C. Yes, because she is required to report legal violations to the appropriate authority.

传感技术是当代科学技术发展的一个重要标志，它与通信技术、计算机技术并称为现代信息产业的三大支柱。应当掌握生物传感器的结构及检测原理，并熟悉其特点、分类及应用领域。

生物传感器选择性测定的部位是在（）

A.换能器部位

B.信号放大部位

C.信号输出部位

D.生物敏感膜部位

E.信号控制单元