题目
(47)填空
第2题
Ancient Greece
The Greeks were the greatest (great) sailors of their time. Greece has one excellent_ 41_ (nature) feature-- the coastline. That's why many Greeks left the mountains and_ 42_ (take) to the sea.
The ancient Greeks have __43_ (give) the world many ideas about life and how to live it. The idea of democracy (民主) started in Greece. So did many ideas of science, religion and_44 (govern). But these ideas did not come out of Greece as a whole. Instead, they grew up in_ 45___ (differ) cities throughout the Greek Empire.
The cities of Greece grew up in valleys near the sea. Each city was_ 46__ (separate) from the others by mountains. The roads _ 47 _ (connect) the cities were narrow and winding. Each city governed itself in its own way. And the_ 48__ (citizen) of each city were very proud of its way of life. In fact, each city was_ 49_ (real) an independent state. Such places are called city-states by_ 50_ (politics) scientists.
第3题
(1)计算下列整数模47后的最小正剩余(即小于47的最小正整数)
(2)求下列最小正剩余
10模11;
16模17;
22模23;
④你能从上述同余式提出一个定理吗?
(3)求下列最小正剩余;
①6!模7;
②10!模11;
③16!模17;
④你能从上述同余式中总结出一个规律吗?
第4题
一横波沿绳子传播时的波动方程为y=0.05cos(47πχ-107πt)(SI)则下面关于其波:、波速的叙述,哪个是正确的? A.波长为0.5m B.波长为0.05m C.波速为25m/s D.波速为5m/s
第5题
A.兴致勃勃 栩栩如生 津津有味 囫囵吞枣
B.津津有味 兴致勃勃 囫囵吞枣 栩栩如生
C.兴致勃勃 津津有味 栩栩如生 囫囵吞枣
D.津津有味 囫囵吞枣 栩栩如生 兴致勃勃
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