初生菌丝体（primary myceliun）
初生菌丝体（primary myceliun）
相关考题：
Which two statements are true about the primary key constraint in a table？ （）A、It is not possible to disable the primary key constraint.B、It is possible to have more than one primary key constraint in a single table.C、The primary key constraint can be referred by only one foreign key constraint.D、The primary key constraint can be imposed by combining more than one column.E、The non-deferrable primary key constraint creates an unique index on the primary key column if it is not already indexed.
单选题儿科就诊的年龄范围是（ ）。A初生～10岁B初生～12岁C初生～14岁D初生～15岁E初生～16岁