班级保教工作除了具有更直接的目的性、教育性、全面整体性,还具有()。 ["集体性","主导性","创造性","开放性"]
Which two code fragments, inserted independently at line 3, generate the output 4247?() [" String s = "123456789"; s = (s - "123").replace(1, 3, "24") - "89";"," StringBuffer s = new StringBuffer("123456789");s.delete(0, 3).replace(1, 3, "24").delete(4, 6);"," StringBuffer s = new StringBuffer("123456789"); s.substring(3, 6).delete(1,3).insert(1, "24");"," StringBuilder s = new StringBuilder("123456789");s.substring(3, 6).delete(1, 2).insert(1, "24");"," StringBuilder s = new StringBuilder("123456789"); s.delete(0, 3).delete(1, 3).delete(2, 5).insert(1, "24");"]
下面哪一个最确切地叙述了类固醇激素作用的跨膜信号转导过程() ["作用于膜酪氨酸激酶","激活G蛋白,进而激动或抑制腺苷酸环化酶","扩散进入胞质,与胞内受体结合","开放跨膜离子通道","以上都不是"]
污水处理系统第一级采用()隔油 ["斜板","撇油器","加药"]
You need to rename a data file of a tablespace. How would you perform this?() ["A","B","C","D"]
依据光照因子分类