光的波长与频率的关系由光速确定，真空中的光速 c=2.99793×1010cm/s，通常c≈3×1010cm/s。光的波长 λ和频率ν的关系为 ν的单位为Hz，λ的单位为cm

The true language of computers is a stream of 1s and 0s—bits. Everything in the computer, be it numbers or text or program, spreadsheet or database or 3-D rendering, is nothing but an array of bits. The meaning of the bits is in the “eye of the beholder”; it is determined entirely by context. Bits are not a useful medium for human consumption. Instead, we insist that what we read be formatted spatially and presented

1. Historical background: The Constitutional monarchy set up by parliament in 1688 was a compromise between the bourgeoisie and the aristocrats. The cultural life had undergone remarkable changes. Newton’s scientific discovery and the philosophy of John Locke affected people’s thinking of the world

---Closed tubular system ---Blood circulatory or cardiovascular S ---Lymph vascular S

外研版（三起）（2012）小学英语三年级下册Module 10 Unit 1 Here's a red hat.课件(3)

5.1 Edward Chace Tolman (1886-1959) Born in Newton,Massachusetts. Received his B.S.degree fromthe Mass.institutes of Technology inelectrochemistry in 1911

The educator’s job is not increase motivation per se(本身）but to discover, initiate, and sustain student’s motivation to learn, and to engage in activities that lead to learning

外研版（三起）（2012）小学英语三年级下册Module 10 Unit 1 Here's a red hat.课件(5)

Space Systems Laboratory Massachusetts Institute of Technology Introduction Introduction Objective : To compare the different imaging configurations for a To compare the different imaging configurations for a Separated Spacecraft Interferometer operating from an Separated Spacecraft Interferometer operating from an Earth’s orbit Earth’s orbit

第六章循环控制 6.1选择题 【题6.1】设有程序段 int k=10; while(k=0) k=k-1; 则下面描述中正确的是 ) while循环执行10次 B)循环是无限循环 C)循环体语句一次也不执行D)循环体语句执行一次 【题6.2】设有以下程序段 int x=0, s=0; while(!x!=0)=+x; printf(%d,s); 则 A)运行程序段后输出0 B)运行程序段后输出1 C)程序段中的控制表达式是非法的D)程序段执行无限次