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【单选题】
当Mega16单片机的T0工作在快速PWM工作模式时，TCNT0计数的速度（）A.
、决定 PWM 的频率，由分频系数及单片机使用晶振决定
B.
、是固定不变的
C.
、是由单片机的晶振决定
D.
、是有单片机的分频系数决定
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举一反三
【单选题】We returned school late from a party and found the door of the students' apartment ______.
A.
had closed
B.
close
C.
to close
D.
closed
【简答题】()是汉代出现的一种合乐诗体。
【单选题】下列各项词语中,每组加点字读音全都正确的一项是
A.
粗糙（ c ā o ）树冠 (gu ā n) 醴酪 (l à o) 瓤肉 (r á ng)
B.
红缯 (c é ng) 贮藏 (zh ù ) 萌蘖 (ni è ) 枕藉 (ji è )
C.
紫绡 (xi ā o) 浸渍 (z ì ) 壳面 (k é ) 龟裂 (gu ī )
D.
记载 (z ǎ i) 莹白 (y í ng) 绛囊 (xi á ng) 祠堂 (c í )
【单选题】We ____ that the magazines you have borrowed be returned to the school library before the end of this month. [ ]
A.
hoped
B.
permitted
C.
wished
D.
required
【简答题】根据句意及首字母的提示，补全单词。 1. When we meet for the first time, we usually s ____ hands. 2. I don't want to eat anything. I'm f______. 3. I often brush my teeth with this kind of t______. 4. I,t is a good ...
【单选题】When we returned from the ball, we found that our house ___ and many things __
A.
has broken into; has been stolen
B.
has broken into; had been stolen
C.
had been broken into; stolen
D.
had been broken; stolen
【单选题】Only when he returned ___________ that the war had ended and the army had come back.
A.
we tell
B.
we told
C.
did we tell
D.
were we told
【简答题】小组项目二的设计方案及运行文件、程序文件。 XX小组项目设计方案.doc XX小组项目运行文件.exe XX小组项目设计程序文件.zip
【单选题】下列各组词语中加点字的读音,全都正确的一组是( )
A.
．祛除 (qù) 猥亵 (wěi) 龌龊 (wò) 笑靥 (yè)
B.
．列观 (ɡuàn) 赝品 (yàn) 装帧 (zhēnɡ) 坍塌 (tān)
C.
．岿然 (kuī) 渑池 (miǎn) 恪守 (kè) 潜力 (qián)
D.
．汤镬 (huò) 虔诚 (qián) 挟制 (xiá) 谈吐 (tǔ)
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