[填空题]
Questions 14-22 Reading Passage 2 has twelve marked paragraphs,
A-L.
Choose the correct heeding for each paragraph from the list of headings below.
Write the correct number, i-xiii , in boxes 14-22 in your answer sheet. List of Headings
i micro food chain under the earth
ii locations of damage seeking
iii the historic scenery beneath the earth has been under attack
iv restricting bacteria breeding via absorbing one chemical element
v relation between bacteria and biofilms
vi bright future for application
vii microbes developing into species needs to be explored
viii microbes environment is under attack
ix key method to destroy biofilms
x resource of breeding bacteria and fungi
xi long-term damaging in the cave
xii effects testing
xiii absorbi