MAGGIE FEB 8 1. CR: two section, but only correct one.. Archaeologists seeking the location of a legendary siege and destruction of a city are excavating in several possible places, including a middle and a lower layer of a large mound. The bottom of the middle layer contains some pieces of pottery of type 3, known to be from a later period than the time of the destruction of the city, but the lower layer does not. 19. Which of the following hypotheses is best supported by the evidence above? (A) The lower layer contains the remains of the city where the siege took place. (B) The legend confuses stories from two different historical periods. (C) The middle layer does not represent the period of the siege. (D) The siege lasted for a long time before the city was destroyed.(C) (E) The pottery of type 3 was imported to the city by traders. 发现属于后期的碎片… 推出, 前期不在那里. 20. The force of the evidence cited above is most seriously weakened if which of the following is true?—不明白.~~~!! (A) Gerbils, small animals long native to the area, dig large burrows into which objects can fall when the burrows collapse. (B) Pottery of types 1 and 2, found in the lower level, was used in the cities from which, according to the legend, the besieging forces came. (C) Several pieces of stone from a lower-layer wall have been found incorporated into the remains of a building in the middle layer. (D) Both the middle and the lower layer show evidence of large-scale destruction of habitations by fire.(A) (E) Bronze ax heads of a type used at the time of the siege were found in the lower level of excavation. could not understand 20 2. math, do two FF section 一对夫妇生四个孩子, 两男两女的概率是多少?---could not understand yet....
一枚COIN, 投一次正面朝上的概率不是0.5, 问是多少?连续投两次, 一次朝上一次朝下的概率是4/9. 一种是先朝上,后朝下,另一种先朝下,后朝上
18、五个数:X,Y,Z,5,7,他们的算术mean is 8,下面那个对? (1)The range of the five numbers is 2 or more; (2)AT least one of x,y,z is more than 9; 哦,想起来了,OR连接的两个有一个对就行~~~9的20次方是十位数是"0", 9的19次方的十位数是?? 则9^20的个位十位=9*(10a+9)=90a+81=10(9a+8)+1
9a+8各位为0,a=8 Maggie 说: 我看不懂? 9^19的个位十位为=10a+9 sypghoho 说:
9a+8各位为0,a=8?
说: 8*9=72+8=80
只有8能凑出来 9的20次方是十位数是"0", 9的19次方的十位数是?? 则9^20的个位十位=9*(10a+9)=90a+81=10(9a+8)+1
9a+8各位为0,a=8 Maggie 说: 我看不懂? 9^19的个位十位为=10a+9 sypghoho 说:
9a+8各位为0,a=8?
说: 8*9=72+8=80
只有8能凑出来
3. RC, review 2 paragraph |