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错题集

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✨ 去练习
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生物

2 道错题 · 2 道待复习

Cell Structure1 题1 待复习
IGCSE中等待复习

Which organelle is responsible for protein synthesis?

你的答案：A正确答案：B
Cell Membranes1 题1 待复习
AS困难待复习

What is the role of the sodium-potassium pump?

你的答案：C正确答案：B
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化学

2 道错题 · 2 道待复习

Chemical Equations1 题1 待复习
IGCSE困难待复习

What is the balanced equation for the combustion of methane?

你的答案：A正确答案：B
Enthalpy Changes1 题1 待复习
AS中等待复习

What is the standard enthalpy change of formation?

你的答案：Energy released when bonds form正确答案：Enthalpy change when 1 mole of a compound is formed from its elements in standard states
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数学

2 道错题 · 1 道待复习

Quadratic Equations1 题1 待复习
IGCSE困难待复习

Solve: 2x² - 5x - 3 = 0

你的答案：x = 3正确答案：x = 3 或 x = -1/2
Differentiation1 题1 已掌握
AS中等已掌握

Differentiate y = 3x⁴ - 2x² + 5

你的答案：12x³ - 4x正确答案：12x³ - 4x
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物理

2 道错题 · 1 道待复习

Forces & Motion1 题1 已掌握
IGCSE简单已掌握

What is the SI unit of force?

你的答案：A正确答案：C
Electricity1 题1 待复习
IGCSE简单待复习

What is Ohm's Law?

你的答案：B正确答案：A
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经济

2 道错题 · 2 道待复习

Macroeconomic Objectives1 题1 待复习
AS中等待复习

Which of the following is a macroeconomic objective?

你的答案：A正确答案：B
Government Policy1 题1 待复习
A-Level中等待复习

Explain the difference between fiscal policy and monetary policy.

你的答案：Fiscal policy is about taxes正确答案：Fiscal policy involves government spending and taxation; monetary policy involves interest rates and money supply controlled by the central bank.