【多选题】What is the techniques to appraise uncertainty?
【简答题】土的颗粒密度和土粒比重从数值上讲二者是()的。
【单选题】There’s still much uncertainty about what it is like to study online. In the sentence, “uncertainty” means:
【单选题】Passage 2--- 4. What is the speaker’s attitude toward uncertainty and settling down?
A.
It is better to settle down later.
B.
It is better to settle down earlier.
C.
It is necessary to try every means to avoid uncertainty.
D.
It is not necessary for people to avoid uncertainty.
【多选题】幼儿在集体教学活动中应该发展的能力主要有