把有机物的混合物在一定条件下反应：①甲醇，乙醇和浓硫酸加热得到醚②乙二醇与乙酸酯

网络计划目标包括( )。

A．时间目标

B．时间一资源目标

C．时间一成本目标

D．资源一成本目标

E．成本目标

康有为、梁启超发起维新变法运动的首要目的是[ ]

A、救亡图存

B、宣传西学

C、建立新军

D、发展经济

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．dock receipt

B．delivery order

C．bill of lading

D． sea waybill

企业在资产负债表日提供劳务交易的结果能够可靠估计的，应当采用（）确认提供劳务收入。

A．计划成本法

B．折算费用法

C．约定产量法

D．完工百分比法

有熔断指示器的熔断器，其指示器应装在（）。

A.内侧

B.外侧

C.便于观察一侧

D.上侧