苗木选定后，最好将苗木标记物标记在苗木长势好、观赏性好的一面。
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边际资本成本是企业追加筹资的成本，边际资本成本的权数采用市场价值权数
A. 正确
B. 错误
根据《SDH本地网光缆传输工程设计规范》，SDH网元级管理设备应能提供标准Q3接口CORBA接口。
A. 正确
B. 错误
海鞘，（）海鞘纲的总称。海鞘纲又可分为（）和（）两大类。海鞘是雌雄同体，异体受精。
Which two statements are true regarding Health Monitor checks in Oracle Database 11g？（）
A. Health Monitor checks can be used to scan the contents of the redo log and archive logs for accessibility and corruption.
B. Health Monitor checks can be used to verify the integrity of database files and report failures if these files are inaccessible，corrupt or inconsistent.
C. Health Monitor checks can be used to verify the contents of dictionary entries for each dictionary object and fix it automatically.
D. Health Monitor checks are always initiated manually when there is some critical error.
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