WHICH OF THE FOLLOWING TERMS FROM THE PASSAGE IS NOT USED TO REFER TO...

Câu 42:

Which of the following terms from the passage is NOT used to refer to the

mammoths?

A.

beasts

B.

pachyderms

C.

bulk

D.

group

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 questions from 1 to 8.

As heart disease continues to be the number-one killer in the United States, researchers have

become increasingly interested in identifying the

potential

risk factors that

trigger

heart

attacks. High-fat diets and "life in the fast lane" have long been known to contribute to the

high incidence of heart failure. But according to new studies, the list of risk factors may be

significantly longer and quite surprising.

Heart failure, for example, appears to have seasonal and temporal patterns. A higher

percentage of heart attacks occur in cold weather, and more people experience heart failure

on Monday than on any other day of the week. In addition, people are more

susceptible

to

heart attacks in the first few hours after waking. Cardiologists first observed this morning

phenomenon

in the mid-1980, and have since discovered a number of possible causes. An

early-morning rise in blood pressure, heart rate, and concentration of heart stimulating

hormones, plus a reduction of blood flow to the heart, may all contribute to the higher

incidence of heart attacks between the hours of 8:00 A.M. and 10:00 A.M.

In other studies, both birthdays and bachelorhood have been implicated as risk factors.

Statistics reveal that heart attack rates increase significantly for both females and males in

the few days immediately preceding and following their birthdays. And unmarried men are

more at risk for heart attacks than their married counterparts. Though stress is thought to be

linked in some way to all of the aforementioned risk factors, intense research continues in

the hope of further comprehending why and how heart failure is triggered.