Power is a sword that must be ___________ with compassion. A: sharpened B: rubbed C: tempered D: slipped

The king died after he was ( ). A: poisoned B: scratched C: rubbed D: leaned

He ____ away the mud on the spade. A: scattered B: rubbed C: scraped D: scratched

He __________<br/>his sore arm. A: threatened B: withdrew C: rubbed D: ordeal

He ____ away<br/>the mud on the spade. A: scattered B: rubbed C: scraped D: scratched

Despite her pressing, he _____________ not to tell her the truth. A: tempted B: rubbed C: traded D: resolved

He scratched his hands badly while pruning the ruse-bushes. A: rubbed B: tore C: stroke D: clawed

She woke up and ( ) her eyes, still feeling sleepy. A: fanned B: paced C: peered D: rubbed

MethodAdvantagesDisadvantages(1) ·Glass remained (2) ·Slow· (3) Ribbon·Could produce glass sheets of varying (4) ·Non-stop process·Glass was (5) ·20% of glass rubbed away·Machines were expensive （5）处填入（）

Lubricating oil should be changed on a heavy duty diesel engine when（）. A: it gets dark in color B: a sample rubbed between fingers feels thin C: it has been in use for a specified interval D: it no longer supports combustio