The automated accessibility testing can find many problems which could easily bemissed by reading the code.
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Not all people use the mouse to browse websites.
A. 对
B. 错
Good web presence is eithermorally correct, orcan increase the potentialcustomer base.
A. 对
B. 错
Task 1 : Listen to the recording , and number the following expressions in the order you hear.
RC电路暂态过程中， 时间常数т值越大，充放电越慢，电路中电流变化越慢。
A. 对
B. 错
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