题目: 矿物抵抗外力刻划、压入或研磨等机械作用的能力称为______。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0527/b8269936e479b4b07b72d96174d4aab8.html 下面是错误答案,用来干扰机器的。参考答案:B
题型:选择题 —How long did the meeting last this afternoon?—It was supper time _________ the meeting was over.A.thatB.at whichC.whenD.until 查看答案
题型:完形填空 完形填空。 Years ago in Scotland, the Clark family had a dream. Clark and his wife worked and 1 , makingplans for their nine children and themselves to travel to 2 . It had taken years, and they had 3 savedenough money and had got passports (护照) and 4 for the whole family to the United States. The entire family was filled with 5 about their new life. 6 , seven days before their departure, theyoungest son was bitten by a dog. The doctor sewed up the boy but he 7 a yellow sheet on the Clarks' front door. 8 the possibility of rabies (狂犬病), they should be quarantined (隔离) forfourteen days. The family's 9 was destroyed. They would not be able to make the trip to America as they had 10 . The father, filled with disappointment and 11 , hurried to the dock to watch the ship leave-withoutthe Clark family. 12 of disappointment came to the father. Five days 13 , the tragic news spreadthroughout Scotland - the mighty Titanic had sunk. The unsinkable ship had sunk, 14 many lives withit. The Clark family should have been on that ship, 15 because the son had been bitten by the dog, they were 16 in Scotland. When Mr. Clark heard the news, he 17 his son and thanked him for saving the family. He thanked God for saving their lives and turning 18 he had felt was a(n) 19 into a blessing. Although we may not always understand, all things 20 for a reason. ( ) 1. A. spent ( ) 2. A. America ( ) 3. A. instantly ( ) 4. A. cars ( ) 5. A. creativity( ) 6. A. However ( ) 7. A. signed ( ) 8. A. Apart from( ) 9. A. passport ( )10. A. imagined ( )11. A. tension ( )12. A. Information( )13. A. later ( )14. A. saving ( )15. A. so ( )16. A. left behind( )17. A. envied ( )18. A. when ( )19. A. sacrifice ( )20. A. remain B. counted B. Europe B. obviously B. ships B. excitementB. Besides B. brought B. In spite of B. ship B. planned B. courage B. Tears B. after B. leaving B. or B. given out B. called B. what B. experience B. disappear C. saved C. Japan C. originally C. tickets C. surprise C. Instead C. hung C. As for C. house C. admitted C. anger C. Letters C. late C. taking C. and C. turned awayC. blamed C. that C. comedy C. happen D. played D. Africa D. finally D. rooms D. imaginationD. Otherwise D. raised D. Because of D. dream D. claimed D. doubt D. News D. over D. killing D. but D. taken over D. hugged D. why D. misery D. exist 查看答案
题型:单项选择题 一台扭力管沉筒液面计,沉筒长度为L,外径为D,内径为d,ρ为沉筒材质的密度,请问沉筒所受浮力为()。A.πD2Lρg/4B.πd2Lρg/4C.π(D2-d2)Lρg/4D.π(D2+d2)Lρg/4 查看答案