【简答题】通气/血流比值是指______和______的比值。正常人安静时,通气/血流比值为______,比值减小,说明______;比值增大,说明______。
【单选题】This place is not big enough for Lucy’s birthday party. We should find a one.
【单选题】关于通气/血流比值,下列叙述错误的是()。
A.
通气/血流比值是每分钟肺泡通气量与肺血流量之间的比值,正确值为0.84
D.
肺下部部分血液得不到充分气体交换,通气/血流比值减小
【单选题】It’s _________ of Amy to make the birthday card than ________ one.
【简答题】阅读理解。 A child's birthday party should be one of the most fun s of the year, for the birthday child, the guests and even for the hosts. The three keys to a successful child's birthday party is pla...
【简答题】in one's birthday suit
【单选题】There is an urgent need ____qualified teachers in poor areas; in other words,poor areas are in great need____qualified teachers.