芽孢的结构一般可分为()、()、()和()四部分。
查看答案
Which statement is true concerning dropping a pluggable database (PDB)?()
A. The PDB must be open in read-only mode.
B. The PDB must be in mount state.
C. The PDB must be unplugged.
D. The PDB data files are always removed from disk.
E. A dropped PDB can never be plugged back into a multitenant container database (CDB).
担任路用列车,石碴、炉碴、河砂准许以()km/h以下速度边走边卸。
A. 5
B. 10
C. 15
压疮第二期为炎性浸润期,主要表现受压部位呈紫红色,浅层组织感染有浓液流出。
A. 正确
B. 错误