【单选题】分析化学由“技术”成为“科学”的标志是 :
B.
物理化学溶液理论的发展,为分析提供了理论基础
C.
物理学和电子学的发展,分析化学从经典的化学分析发展到现代仪器分析
D.
信息时代来临,分析化学利用数学和统计方法设计最优的测量步骤,获得最大限度的化学知识
【单选题】配气相位是指用发动机曲轴的( )表示进、排气门实际开启和关闭的时刻和开启的持续时间。
【简答题】A.ability B.access. C.admired. D.allowed. E.basically. F.consuming. G.current. H.hiding. I.includes. J.motivation. K.obvious. L.passion. M.premise. N.value. O.wisely The phrase bird...
【简答题】A) academic B) access C) accompany D) clearly E) comprehension F) context G) enables H) encountered I) enhances J) entertaining K) exposes L) independently M) specifi...
【简答题】词汇:n. 能力,能耐;才能 e.g. I try to do my job to the best of my a .A. ability
【简答题】revealing, flow, envy, specify , alert,transaction, motivate, assess 1. Keep a(n) eye on every building where a fire might start. 2. The hurricane damage was at three million dollars. 3. I you fo...