昼夜尿液比重试验的参考值，不正确的是（） A.尿液最高比重应在1.020以上 B.昼

下列表示对应化学反应的离子方程式，其中正确的是         （   ）

A．向NaA1O₂溶液中通入足量的CO₂：A1O₂+CO₂+2H₂OA1（OH）₃↓+HCO₂^—

B．（NH₃）₂+Fe（SO₃）₂溶液中加入过量的氢氧化钡溶液：2NH₄⁺+Fe²⁺+4OH^—Fe（OH）₂↓+2NH₂·H₂O

C．NaHSO₄溶液中加入Ba（OH）₂溶液至溶液呈中性：Ba²⁺+OH^—+H⁺+SO₄^2—NaSO₄↓+H₂O

通电

D．用惰性电极电解NaHS溶液：S^2—+2H₂OS↓+H₂↑+2OH^—

完型填空（每空1分，共5分）The bill of lading by itself is not a contract of carriage as it is signed only by the carrier. However, it provides（ ① ）. It serves as a receipt for goods delivered to the carrier. Besides, the bill of lading serves as a document of title enabling the goods to be transferred from the shipper to the consignee or any other party by endorsement.The sea waybill is the replacement of the traditional （ ② ）. The waybill is a non-negotiable document and made out to a （ ③ ） who is allowed, upon production of proper identification, to claim the goods without presenting the waybill.The （ ④ ） is issued by the carrier to enable the consignee to take delivery of the cargo from the vessel.The mate’s receipt is the receipt issued by the chief mate in the acknowledgement of the goods received on board which is subsequently exchanged for the（ ⑤ ）.

A．contract of carriage

B．evidence of contract of carriage

C．contract itself

D． A＆C

微型计算机的三条总线是______、控制总线和地址总线。

地籍管理信息系统元数据管理功能将提供完整的（）等功能，与Web应用程序接口，成为网络用户访问国土资源基础空间数据的入口。

A.输入

B.编辑

C.查询

D.输出

E.导出

举升机举升车辆后，用什么来承受车辆载荷？（）

A、液压自锁

B、液压自锁和安全钩锁紧共同作用

C、安全钩锁紧