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【单选题】
系统里有四个周期性任务J1, J2, J3, J4, 周期分别为20ms, 40ms, 50ms, 30ms, 采用速率单调调度算法(RMS),这四个任务里优先级最高的任务是( )。A.
J1
B.
J2
C.
J3
D.
J4
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【简答题】Henry had to walk home from work because he missed the bus． →Henry didn’t______the bus so he had to walk home from work．
【简答题】炮制含苷类成分的药物,一般不选用的辅料是( )。A.酒B.醋 C.盐D.姜A. 1 B. 1 C. 1 D. 1
【单选题】雁门太守行 唐 李贺 黑云压城城欲摧,甲光向日金鳞开。 角声满天秋色里,塞上燕脂凝夜紫。 半卷红旗临易水,霜重鼓寒声不起。 报君黄金台上意,提携玉龙为君死。 下列关于《使至塞上》的理解和赏析不正确的一项是( )
A.
首联运用比喻和夸张的修辞手法，渲染了敌军兵临城下的紧张气氛和危机形势。
B.
颔联从视觉和听觉两方面渲染战场的悲壮气氛和战斗的残酷场面。
C.
颈联“半卷”写出黑夜行军的谨慎，“临易水”直接抒发了将士们悲壮的豪情。
D.
尾联运用典故表达了将士们报效朝廷的决心，是全篇的点睛之笔。
【单选题】Point out the work that was written by Henry David Thoreau. ______
A.
The Fall of the House of Usher
B.
The Rise of Silas Lapham
C.
Walden
D.
The Legend of Sleepy Hollow
【单选题】According to the passage, Phillip found ______.
A.
the art work interesting
B.
the work of a doctor amusing
C.
patients similar to clay
D.
the work of a doctor similar to that of an artist
【单选题】Henry often goes to work by bike. But this morninghe______ go by bus, for it looks as if it is going to rain.
A.
can
B.
must
C.
shall
D.
may
【单选题】On returning from work, _____.
A.
John found a letter in the mailbox
B.
a letter was found in the mailbox
C.
a letter was in the mailbox
D.
the mailbox had a letter in it
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