皮皮学，免费搜题
登录
搜题
【单选题】
人体软组织的声衰减系数的大小与以下哪项成正比( )A.
波长
B.
频率
C.
周期
D.
声速
E.
以上都不是
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】As First Lord of the Admiralty in 1915, he had be en deeply ... a ... in the Dardanelles that could have shortened the...of a bloody world war.
A.
involve d in... campaign ... course
B.
love affair...disatrous circumstances...course
C.
loss of life...position...campaign
D.
engaged in...position...cause
【单选题】The author implies what the troubled boys needed most was _________.
A.
strict guidance in proper behavior
B.
challenging demand in hard work
C.
sympathy and tolerance from adults
D.
understanding and trust from others
【单选题】Jane has become ______ to Tom, and the wedding will be in May.
A.
engaged
B.
married
C.
offered
D.
settled
【简答题】One hundred boys went on a school outing. Eighty-one percent of the boys lost a shoe, 82 percent of the boys lost a sock, 77 percent of the boys lost a handkerchief and 68 percent of the boys lost a h...
【简答题】我们所从事的是一项很重要的事业。( be engaged in.. )
【简答题】听录音，写数字。 1. ____________ apples 2. ____________ pens 3. ____________ boys 4. ____________ books 5. ____________ rulers
【简答题】Sentence Check 3 Complete e a ch sentene with the co rrect word from the box below . Use e a ch word once. a. f actors b. elbows c. scarcely d. colony e. scale f. i dle g. engaged h. correspondent i. ...
【简答题】be engaged in.. .
相关题目：