按现有企业噪声标准的规定,工作环境每增加( )dB,在此环境中的工作时间就必须减少

题型:单项选择题

问题:

按现有企业噪声标准的规定,工作环境每增加( )dB,在此环境中的工作时间就必须减少一半。

A.3
B.5
C.7
D.9

考点:环境影响评价工程师环境影响评价技术方法环境影响评价技术方法
题型:单项选择题

各鼻窦炎头痛的特征中,“在头颅深处,其头痛多在头顶部、颞部或后枕部”为()

A.筛窦炎

B.蝶窦炎

C.上颌窦炎

D.后组鼻窦炎

E.前组鼻窦炎

题型:单项选择题

房角镜下所见Schwalbe线解剖位置上等同于

A.Schlemm管
B.后弹力层止端
C.巩膜脊
D.前弹力层止端
E.内皮细胞层止端

题型:单项选择题

溶血性贫血

A.急性心肌梗死
B.感染性心内膜炎
C.急性左心功能不全
D.甲状腺功能亢进症
E.高度房室传导阻滞下列症状最常见于何种疾病

题型:单项选择题

Velma and Daphne Productions is estimating the weighted average cost of capital (WACC). They have several pieces of data to consider. The firm pays 60 percent of its earnings out in dividends. The return on equity (ROE) is 16 percent. Last year’s earnings were $4.00 per share and the dividend was just paid to shareholders. The current price of shares is $35.00. If the firm must issue new shares of common stock, they must pay a flotation cost to the investment bankers of 6 percent. The firm’s optimal capital structure includes 10 percent preferred stock, 40 percent debt and 50 percent equity. They can sell additional bonds at a rate of 9 percent. The cost of issuing new preferred stock is 13 percent. The firm’s marginal tax rate is 40 percent. The cost of issuing retained earnings and new common shares is closest to : Cost of retained earnings Cost of new common stock()①A. 13.3%13.7% ②B. 13.7%14.2% ③C. 13.3%14.2%

A. ①

B. ②

C. ③

题型:单项选择题

家具设计的基本特征包括:艺术特征、经济特征和()。

A.科技特征

B.盈利特征

C.市场特征

D.社会特征

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