Ralph resented this charge with more apparent earnestness than he commonly used.拉尔夫不接受这种指责,他的态度比平时明朗而认真.She is talking to her marketing manager, Ralph, about a new product.她正和她的行销经理拉夫谈论一项新产品.'Will you do this for me...
我们常常举出这样一系列形状不同,然而具有相同光焦度的透镜,作为透镜的配曲调整的例子.One often speaks of this succession of shapes having the same power as exemplifying lens bending.用同样的方法,我们能够求出任意数目的薄透镜的响应.In this same way we could compute the response of any nu...
It’s the latest craze to hit San Francisco.那是旧金山流行的最新时尚。His birthplace is Washington,but he lives in San Francisco.他出生于华盛顿,但住在旧金山。San Francisco is built on 40 hills and some are very steep.旧金山建在 40 座小山丘上，其中一些非常陡峭。...a Ch...
Objective: To directly and accurately identify Artemisia argyi Levl . et Vant.目的: 为了直接准确地鉴别艾、野艾及细叶艾.Fall asleep, dream Township who insisted on boat Artemisia?睡着了, 梦里水乡是谁撑着船蒿?Aim To study the chemical constituents of Art...