【判断题】水稻杂交种种子生产中,幼穗剥检法在各生长发育阶段均可使用。
【单选题】What could be the consequences if you challenge yourself?
A.
To be overwhelmed by the wealth of courses.
B.
To find the passion that will shape your future.
C.
To experience all the courses available to you in college.
D.
To be upset with college life
【单选题】小学生注意发展的总体趋势是什么?
C.
从无意注意能力开始下降,有意注意能力逐渐提高。
D.
无意注意和有意注意均有发展,并且从无意注意占优势逐渐发展到有意注意占优势。
【单选题】If black smoke is coming from the exhaust stack of a diesel engine, what could be the trouble?( )
B.
leaking fuel injecting
【单选题】cin 是某个类的标准对象的引用,该类是( )
【单选题】For scholar students like the narrator, Kay and Beverly, what could be the possible future?
A.
Be an interpreter in United Nations
C.
Get married or be a school teacher
D.
Climb up the social ladder and be someone important
【简答题】在水稻杂交制种时,预测花期的方法有幼穗剥检法和 ( ) 等。调节花期的主要方法有 ( ) 、 ( ) 和 激素调 。