26.\x05已知血管内的血液是由压力高往压力低的方向流动.表(五)为同一器官中甲、乙、丙、丁四种血管及其内的压力值,若

26.x05Hawaiian Islands,is one of the _______ military bases of the United States.
A.mainlyx05x05x05B.mostx05x05x05C.mostlyx05x05x05D.major

26.x05The international situation has been growing ________ difficult for the last few years.A) invariablyB) presumablyC) increasinglyD) dominantly27.x05Small farms and the lack of modern technology have ________ agricultural production.A) blunderedB) tangledC) bewilderedD) hampered28.x05The Japanese scientists have found that scents ________ efficiency and reduce stress among office workers.A) enhanceB) amplifyC) fosterD) magnify29.x05To ________ is to save and protect,to leave what we ourselves enjoy in such good condition that others may also share the enjoyment.A) conserveB) conceiveC) convertD) contrive30.x05In ________ times human beings did not travel for pleasure but to find a more favourable climate.A) primeB) primitiveC) primaryD) preliminary