皮皮学，免费搜题
登录
搜题
【简答题】
74LS90 构成的十进制计数电路如图所示,写出循环状态( )(10个状态)。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Often enough the craft worker's place of employment in ancient Greece was set in rural isolation. Potter, for instance, found it convenient to locate their workshops near their source of clay, regardl...
A.
production techniques
B.
similarity to other crafts
C.
unusual materials
D.
resemblance to earlier pottery
【多选题】商品细节图一般展示的细节特写有()。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
商品的价格
B.
商品的构造
C.
商品的包装
D.
商品的使用功能
【单选题】After she played the piano at school as people applauded.
A.
After she played the piano in school and saw that people applauded.
B.
After she played the piano and people applauded.
C.
After she played the piano in school, people applauded
【单选题】A time-study specialist has set the production rate for each worker on a certain job at 22 units every 3 hours. At this rate what is the minimum number of workers that should be put on the job if at l...
A.
5
B.
8
C.
12
D.
13
E.
30
【单选题】When Mary came, I _____ on the piano.
A.
is playing
B.
plays
C.
was playing
D.
played
相关题目：