更多"The second book was （） by August 19"的相关试题:
[单项选择]The second book was ______ by August 1952, but two years later, the end was still nowhere in sight.
A. completed
B. to complete
C. to have completed
D. to have been completed
[简答题]The violent tornado that struck in August last year_______________ (已经引起全球科学家的高度重视).
[填空题]
The word horsepower was first used two hundred years ago.
James Watt had made the world’s first widely used{{U}} (11) {{/U}}. He
had no way of telling people exactly how powerful it was, for{{U}} (12)
{{/U}}there were no units for measuring power.
Watt decided
to find out how much work one strong horse could do in{{U}} (13) {{/U}}.
He called that unit one horsepower. With this unit he could measure the work his
steam engine could do.
He discovered that a horse lift a{{U}}
(14) {{/U}}weight 10 feet in one minute. Because his engine did{{U}}
(15) {{/U}}as much as the horse, Watt called it a ten-horsepower
engine.
