昆虫的整个发育过程可分为胚胎发育和__________两个阶段。
参考答案：胚后发育
To keep healthy, many people _____ Taichi as a regular form of exercise. [ ]
A. turn up
B. set up
C. make up
D. take up
组织氨泄漏演练的目的是让可能接触到氨泄漏的普通员工明白什么？
