题目内容

容量瓶用待装溶液润洗

A. 对
B. 错

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容量瓶的使用操作包括哪些步骤（）

A. 检漏
B. 转移溶液
C. 初步混匀
D. 定容
E. 摇匀

Which of the following is known as the heart and brains of a computer?

A. Optical drive
B. Motherboard
CPU
D. Memory

The ________ is a group of microchips on the motherboard that control the flow of data and instructions sent to and from the processor.

A. PCIe
B. Chipset
C. RAM
D. CPU

When data and instructions are not being used, they must be kept in permanent storage. It is sometimes called ________ storage.

A. Secondary
B. Primary
C. Volatile
D. Hard