影响和决定产业投资结构的投资由净投资和（）两部分构成。
A.总投资
B.重置投资
C.新增投资
D.固定资产投资
参考答案：B
_______ by the police, the kidnappers had nothing to do but ______ up.
A．Surrounding...to give
B．Having surrounded...give
C．Surrounded...to give
D．Surrounded...give
从各器官系统的特征论述爬行类是真正登陆成功的动物。
