在组培中用于灭菌的主要仪器设备有()
A.电炉、过滤器、煤气灶
B.超净工作台、超低温冰箱
C.高压灭菌器或过滤器、超净工作台
D.微波炉、煤气灶、纯水发生器
参考答案:C
太阳系中与地球相邻的两颗行星是
A.金星、水星
B.火星、木星
C.金星、火星
D.土星、水星
People have the belief ______ factories should produce fewer things from raw materials, ______the supply is growing smaller and smaller.
A.which; that
B.that; of which
C.that; whose
D.which; whose