双子叶植物根的周皮是由()共同组成。
A.木栓层
B.木栓形成层
C.栓内层
D.皮层
E.表皮
参考答案:A, B, C
《企业会计准则》规定,企业在编制年度财务会计报告前,应当全面清查资产、核实债务。 ( )
The equipment required to remove an on-deck oil spill on a barge transfering oil must either be arried on board or().
A.on a tug standing by
B.available by contract with the shore facility
C.kept at the shoreside hose connection during transfer
D.kept in a protected shoreside location readily accessible