AC voltmeters are generally calibrated to read the _____.

Older people are generally advised to _____.

Universal motors will operate on AC or DC current, and are generally found in _____.A.port

The bearings used to support the crankshaft are generally called _____.A.line shaft bearin

According to the passage, small children______.A．are natural rule-breakers and generally l

These magazines are both interesting and instructive. No wonder they______ to the reading

These journals are both interesting and instructive. No wonder they______ to the reading p