天然辐射源主要来源有（）A.宇宙辐射 B.陆地上的辐射源 C.体内放射性物质 D.以

My uncle _____ to see me. He’ll be here soon.

A．comes

B．is coming

C．had come

D．came

具有养心安神，敛汗功效的药物是（）

A.酸枣仁

B.莲子

C.远志

D.合欢皮

E.夜交藤

It is required by law that the children above six years old in our country ________ to school to receive education.

A．would be sent

B．are sent

C．be sent

D．will be sent

收到客户的投诉、建议时，应怎样说？

对商标局初步审定予以公告的商标提出异议的，异议人应当将（）一式两份交送商标局。