GMAT数学(博智教材)第62页:If X is equal to the sum of the even integers from 40 to 60, inclusive, and y is the number of even integers from 40 to 60, inclusive, what is the value of x+y?
X=40+42+44......60=550
Y=(60-40)/2+1=11, 答案应该是561,为什么书后面的答案显示是560?
请金老师帮忙回答下 七龙珠E卷 34
考点: 并列,时态
我自己选的A,
理由:划线外are often dragged under and drowned的 主语that指的就是seabirds, 语义,并列都符合,虽然用的是encountered但是感觉可以接受
给出的答案C,说长线 devastating 海鸟 are often dragged and drowned.
感觉从修饰结构能接受,但是句意不是很理解