在自动化仪表中，DDZ-Ⅲ型仪表以（）为基本元件。
A.电子管
B.晶体管
C.集成电路
D.印刷电路
参考答案：C
----Have they finished the project?
---- Yes. By the end of last month, they ______ it. Now they ______ on a new one.
A．had finished; are working
B．had finished; work
C．have finished; are working
D．have finished; work
γ-谷氨酰转移酶（γ-GT）
