（）是由外国公司、企业和其他经济组织或个人（以下简称外国合营者）根据平等互利的原则，根据我国的法律，经我国政府批准，在我国境内同我国的公司、企业和其他经济组织或个人（以下简称中国合营者）共同举办的合营企业。

A．合资企业 

B．外商投资企业 

C．外商独资企业 

D．合作企业

In recent years, great changes have taken place in the city of Wenzhou. As we can see, many streets and roads_______.

A．had been built and rebuilt

B．has been built and rebuilt

C．have been built and rebuilt

D．are being built and rebuilt