正确答案: B

钠平衡电位

题目：神经细胞动作电位的超射值接近于 （　　）

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学习资料的答案和解析：

[单选题]改革开放以来，对市场经济认识的重大突破是

市场经济不属于社会基本制度的范畴

解析：对市场经济认识的重大突破是：党的 十四大提出，我国经济体制的改革目标是建立社 会主义市场经济体制，从根本上破除了把计划经 济与市场经济看做是属于社会基本制度范畴的思 想束缚。故选“D”。

[单选题]延安整风的中心内容是（　　）

反对主观主义以整顿学风

解析：延安整风运动的主要内容是，反对主 观主义以整顿学风，反对宗派主义以整顿党风，反 对党八股以整顿文风。其中的中心内容是“D”。

[单选题]__________

根据以下内容，回答下面的题目。Investors can _51_ money simply by loaning it．The money they loan is called capital．Security (担保) is an expensive item which the borrower mortgages (抵押) to the investor to show that he intends to _52_ the debt．The way investors make money on loans is to charge interest．Interest is money that _53_ pay to investors for the use of their money．Interest is usually a certain percentage of the capital．Investors sometimes _54 ten percent or more interest per year．The interest may be calculated daily, monthly, or yearly．The interest must be _55_ before the capital can be repaid．If the interest is not _56_ the agreed rate, the interest is added _57_ the capital．Then the borrower has _58_ pay interest on the unpaid interest _59_ on the capital．A debt can grow quickly this way．If the total of the capital and accumulated interest gets too high, the investor will take _60_ of the item used as security and sell it to get his money back．__________

borrowers

[单选题]三个数0，30.7，log30．7的大小关系是（　　） (A)0<30.7< log30．7(B)log30．7<0<30.7(C)log30．7<30.7<0(D)0< log30．7<30.7

[单选题]The room ________often cleaned by the students．

is

[单选题]构成纤维膜后部的是 （　　）

根据以下选项，回答下面的题目：A．虹膜 B．脉络膜 C．巩膜 D．角膜 E．睫状体 构成眼球壁血管膜后部的是 （　　）

[单选题]前锯肌（　　）

助臂上举