It is indicated in Paragraph 1 that______.
A．seeing is not always believing
B．healthy people also should always go to hospital for a cancer screening
C．through our own physiological system can we eradicate tumors
D．screening for lung cancer, to some extent, may do more harm than good

未分类题In Paragraph 5, the underlined word 'that study' refers to______.A．his own studyB．the study of cancer insulated from screeningC．the study involves screeningD．the study carried out by Claudia Henschke

未分类题It can be inferred from Paragraph 4 that______.A．marine animals cannot live within oxygen level 20% below normalB．the estimated amount of spilled oil is fully recognized by all partiesC．the dispersed oil will come inland in tiny specksD．one necessary condition for the digestion of bacteria is oxygen

未分类题The underlined word in Paragraph 6 refers to______.A．the damageB．the bacteriaC．the oilD．the chemical

未分类题The authors attitude towards the transportation of London during the 2012 Olympic Games is one of______.A．satisfactionB．indignationC．skepticismD．positiveness

未分类题The main point of paragraph 4 is______.A．those who need a college education most are having the most difficulty getting itB．student loans are improving access to education for allC．high-income families benefit most from student loansD．low to moderate-income families benefit most from student loans