Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

A. substantial

B. applicant

C. terrorist

D. industry

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Although they are an inexpensive supplier of vitamins, minerals, and high-quality protein, eggs also contain a high level of blood cholesterol, one of the major causes of heart diseases. One egg yolk, in fact, contains a little more than two-thirds of the suggested daily cholesterol limit. This knowledge has driven egg sales to plummet in recent years, which in turn has brought about the development of several alternatives to eating regular eggs. One alternative is to eat substitute eggs. These egg substitutes are not really eggs, but they look somewhat like eggs when they are cooked. They have the advantage of having low cholesterol rates, and they can be scrambled or used in baking. One disadvantage, however, is that they are not good for frying, poaching, or boiling. A second alternative to regular eggs is a new type of egg, sometimes called 'designer' eggs. These eggs are produced by hens that are fed low-flat diets consisting of ingredients such as canola oil, flax, and rice bran. In spite of their diet, however, these hens produce eggs that contain the same amount of cholesterol as regular eggs. Yet, the producers of these eggs claim that eating their eggs will not raise the blood cholesterol in humans.

         Egg producers claim that their product has been portrayed unfairly. They cite scientific studies to back up their claim. And, in fact, studies on the relationship between eggs and human cholesterol levels have brought mixed result. It may be that it is not the type of eggs that is the main determinant of cholesterol but the person who is eating the eggs. Some people may be more sensitive to cholesterol derived from food than other people. In fact, there is evidence that certain dietary fats stimulate the body's production of blood cholesterol. Consequently, while it still makes sense to limit one's intake of eggs, even designer eggs, it seems that doing this without regulating dietary fat will probably not help reduce the blood cholesterol level.

What is the main purpose of the passage?

A. To introduce the idea that dietary at increases the blood cholesterol level

B. To make people know about the relationship between eggs and cholesterol

C. To persuade people that eggs are unhealthy and should not be eaten

D. To convince people to eat 'designer' eggs and egg substitutes

Cho các chuyển hoá sau

( 1 ) X + H 2 O → t o , xt   Y ( 2 ) Y + H 2 → t o , Ni Sobitol ( 3 ) Y + 2 AgNO 3 + 3 NH 3 + H 2 O → t o Amonigluconat + 2 Ag + NH 4 NO 3 ( 4 ) Y → t o , xt E + Z ( 5 ) Z + H 2 O   → as ,   clorophin X + G

X, Y và Z lần lượt là

A. tinh bột, glucozơ và ancol etylic.

B. xenlulozơ, fructozơ và khí cacbonic

C. tinh bột, glucozơ và khí cacbonic

D. xenlulozơ, glucozơ và khí cacbon oxit

mai hỏi trần thảo viết cái bài where vs how often ở đâu tek

chép cái phần chữ nhỏ ấy

mới đầu ở tây sơn thượng đạo , khi thế lực mạnh lên xuống tây sơn hạ đạo, lập căn cứ ở kiên mĩ( tây sơn- bình định)

Rối loạn phân li của một cặp nhiễm sắc thể ở kì sau trong phân bào là cơ chế làm phát sinh đột biến

A. cấu trúc NST

B. đột biến gen

C. đa bội

D. lệch bội.

(x+2)²-9=0

(x+2)²=0+9

(x+2)²=9

(x+2)²=3²

x+2=3

x=3-2

x=1