(96)Buying a cup of coffee isn’t as easy as it used to be .Years ago there were only two kinds of coffee – black or white. But nowadays when you go into a coffee shop in the UK you are given about twenty different options. Do you want a Cappuccino, a Latte, a Caramel Macchiato, an Americano, or a White Mocha?

(97)People often think that being able to choose from a lot of options is a good thing. In big supermarkets we have to choose between different thousands of products – my local supermarket has 35 different kinds of milk! When we are buying clothes or electrical gargets, looking for a hotel on a travel website, or just deciding which TV channel to watch, we are constantly forced to choose from hundreds of possibilities.

(98)But if all this choice is bad for us, what we can do about it?. However, university researchers have discovered that too much choice is making us feel unhappy and dissatisfied. The problem is that we have too many options that we get stressed every time we have to make a decision, because we are worried about making the wrong one. When we choose one thing we feel bad because we think we are missing other opportunities, and this makes us dissatisfied with what we have chosen.

(99)Research shows that we feel happier when we have less choice. Professor Mark Lepper at Stanford University in America found that people who tried six kinds of jam felt happier with their choice than those who were offered 24 jams to taste.

(100)you'll feel better than if you spend hours researching sofas. Professor Lepper suggests that we should try to relax when we have to choose something to buy. ‘ Don’t take these choices too seriously or it will become stressful,’ he says. ‘If you pick a sofa from IKEA in 30 seconds, (00) F – because you won’t know what you’re missing.’

Hình chữ nhật có thể ko phải hình vuông

Hàm số y = e x  có đồ thị (C). Chọn khẳng định sai

A. (C) nhận trục Oy làm tiệm cận đứng

B. (C) nhân trục Ox làm tiệm cân ngang

C. Hàm số luôn đồng biến trên R 

D. (C) đi qua điểm (1;e)