[问答题] 哪些植物可以除甲醛,请列举出至少3种?
[填空题] 试举出3种耐盐植物()、()和()。
[名词解释] vital statistics
[名词解释] morbidity statistics
[问答题] 请列举出3种用户查询帐单的途径?
[填空题] 试举出3种沙(丘)地造林的方法()、()、()。
[问答题] 请列举出3种大气中的温室气体。
[问答题] 试举出3种铆合机具设备的名称?
[问答题] 试举出3种质量传递机理的实例。
[单选题]The official statistics on productivity growth ________.[A] exclude the usual rebound in a business cycle[B] fall short of businessmen’s anticipation[C] meet the expectation of business people[D] fail to reflect the true state of economy