【简答题】_____, I have never seen anyone who’s as capable as John. A.As long as I have traveled B.Much as I have traveled C.Now that I have traveled so much D.As I have traveled so much
【多选题】下面对光的性质描述正确的是:
A.
光是粒子性的还是波长性的,一直是科学领域无法论证的课题。
【单选题】The teacher recommended that Jack______ math or physics instead of English because he was quick at numbers.
【单选题】锈菌是一类比较复杂的菌物,下列哪个选项 没有 体现锈菌的复杂性?
【单选题】A good teacher should encourage his students to ____ the knowledge by themselves instead of just copying and memorizing what the teacher said in class.
【单选题】_____, I have never seen anyone who's as capable as John. [ ]
A.
As long as I have traveled
B.
Now that I have traveled so much
C.
Much as I have traveled
D.
As I have traveled so much
【判断题】不准用汽车挂车、蓄电池车辆、叉车和拖拉机运输化学危险品。( )
【多选题】有关香豆素荧光性质描述正确的是 ( )
A.
大多数的香豆素在紫外光的照射下可呈现绿色荧光
B.
大多数的香豆素在紫外光的照射下可呈现蓝色或紫色荧光
E.
荧光的强弱和有无,与分子中取代基的种类和位置有关