搜题请搜索小程序“爱下问搜题”
问题 单项选择题

“杂交水稻之父”袁隆平院士将野生水稻与普通水稻多次杂交，培育出高产的杂交水稻新品种，利用的原理是( )。

A．生态系统的多样性

B．染色体的多样性

C．基因的多样性

D．细胞的多样性

答案

参考答案：C

解析：【解析】杂交利用的生物学原理基因的多样性

单项选择题

与牙齿毗邻最近的鼻旁窦是（）

A.额窦

B.上颌窦

C.蝶窦

D.前筛中筛窦

E.后筛窦
查看答案
单项选择题

Selected information from Indigo Corp.’s financial activities in the year 4 included the following: Net income was $ 5600000. The tax rate was 40 percent. 500000 shares of common stock were outstanding on January 1. The average market price per share was $ 82 in year 4. Dividends were paid in year 4. 6000, 5 percent $ 1000 par value convertible bonds, which are convertible at a ratio of 20 shares for each bond, were outstanding since January year 3. 200000 shares of common stock were issued on July 1. 100000 shares of common stock were purchased by the company as treasury stock on October 1. Indigo Corp.’s diluted earnings per share (Diluted EPS) for year 4 was closest to:

A．

A. $9.74.

B．

B. $8.49.

C．

C. $8.32.
查看答案