山脊等高线与山谷等高线应于山脊与山谷线（）相交。
A.倾斜
B.垂直
C.平行
D.直线
参考答案：B
The unrealized gains and losses arising from changes in the market value of available-for-sale securities are reported under U.S. GAAP and International Financial Reporting Standards (IFRS) in the:（）
A. equity section for both.
B. equity section for U. S. GAAP and the income statement for IFRS.
C. income statement for U. S. GAAP and the equity section for IFRS.
神经元根据其功能特性，可分为感觉神经元、______神经元和联络神经元。
