下列关于催产素的叙述，错误的是( )。

A．由下丘脑合成

B．由神经垂体释放

C．促进妊娠子宫收缩

D．促进妊娠期乳腺生长发育

E．促进哺乳期乳腺排乳

A project life cycle is a collection of generally sequential project（）(1) whose name and number are determined by the control needs of the organization or organizations involved in the project. The life cycle provides the basic（） (2) for managing the project, regardless of the specific work involved.

空白（2）处应选择（）

A.plan

B.fraction

C.main

D.framework