[問題] PP SC no.37 CR no.114
SC no37
One report concludes that many schools do not have, "nor are they" likely
to have, enough computers to use them effectively.
第一個they指代schools
第二個them指代computers
指代2個不是應該是錯誤的嗎...還是我搞錯他們的指代對象了呢?
CR no114
Outbreaks of Rift Valley fever occur irregularly in East Africa, several
years apart. When outbreaks do occur, they kill thousands of cattle.
A livestock vaccine against the diease exists but is rarely used. Its too
expensive for farmers to use routinely, and since it is not effective until
a month after vaccination, administering it after an outbreak begins helps
very little. Nevertheless, experts predict that use of the vaccine will
increase significantly within the next few years.
Which of the following, if true, provides the strongest justification
for the experts' prediction?
E. Recently published research has shown that certain identifiable climatic
conditions are almost invariably followed, which two to five months, by an
outbreak of Rift Valley fever.
請問可以預期的氣候狀況跟使用該疫苗有何關係啊???
沒辦法理解這個正確答案
謝謝!!
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