下列哪个符号是正确的？

Which of the following signs is right?

youdao

最后，你必须添加正确的符号。

Finally you need to add the correct symbol.

youdao

现在，我们使用==符号,这是正确的。

Now, we're using the equal equals operator and this conceptually is correct.

youdao

这是正确的符号表示吗？，好的。

Is that the correct sign? Good.

youdao

我甚至想让我编辑的每个字母及标点符号都正确。

I even want to make every letter and punctuation right.

youdao

我的相机只用天气符号来确定正确的曝光时间。

My camera use only weather symbols to decide correct exposure.

youdao

符号同步是实现PPM正确解调的关键技术。

Symbol synchronization for PPM is necessary for accurate demodulation.

youdao

注意正确使用正确的符号表示电池、导线和灯泡。

Be sure to labelthe battery, the wire, and the bulb.

youdao

注意正确使用正确的符号表示电池、导线和灯泡。

Be sure to labelthe battery, the wire, and the bulb.

youdao