Clock-making is very ______ work which takes years to learn.

【单选题】在 VHDL 中,用语句 表示检测 clock 的上升沿。 A 、 clock’event B 、 clock’event and clock=’1’ C 、 clock=’1’ D 、 clock’event and clock=’0’ A. clock’event B. clock’event and clock=’1’ C. clock=’1’ D. clock’event and clock=’0’

在VHDL中,用语句表示检测clock的上升沿。A、clock’eventB、clock’eventandclock=’1’C、clock=’1’D、clock’eventandclock=’0’

Listen to the first part of a monologue about the invention of the clock. Answer the following questions.1. When did people begin to make clocks?2. Where did the civilisation of making clocks begin?3. What role did clocks play at that time?4. What is the difference between the clock and the seasons and the phases of moon in terms of measuring time?5. Where does the word “clock” come from and what does it mean originally?6. When was the first mechanical alarm clock invented?

Conversation 17.A) At 2 o'clock this afternoon. B) At 3 o'clock this afternoon. C) At 10 o'clock this morning. D) At 10 o'clock tomorrow morning. A: At 2 o'clock this afternoon. B: At 3 o'clock this afternoon. C: At 10 o'clock this morning. D: At 10 o'clock tomorrow morning.

What is the meaning of "clock in" and "clock out"?

The clock (say) ______ it is five o’clock now.

在VHDL中,可以用语句clock’event and clock=’0’表示检测clock上升沿。（ ）

Until what time will the tornado watch be in effect A: 10 o'clock tonight. B: 2 o'clock in the morning. C: 2 o'clock in the afternoon. D: 10 o'clock in the mornin

语句 @ (posedge clock, negedge clock) q = d; 的含义是 。 A: 在clock下降沿赋值 B: 在clock上升沿赋值 C: 与@ (clock) q = d;作用相同 D: 该语句是错误的