皮皮学，免费搜题
登录
搜题
【单选题】
有限展弦比无扭转直机翼，速度环量沿分布的规律是（ ）。A.
机翼对称面上为零，机翼两端最大
B.
机翼对称面上和机翼两端都不为零
C.
均匀分布
D.
机翼对称面上最大，机翼两端为零
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】— Has Tom finished writing his essay today? — I have no idea. He ______ it this morning.
A.
wrote
B.
has written
C.
was writing
D.
had written
【单选题】The man who wrote this essay was _____.
A.
a Brazilian traveler in a part of his country he had never been to before
B.
a Brazilian from Rio who had received his education in England
C.
an American from New England traveling in Brazil
D.
a Latin American driving through the mountainous area of Brazil
【单选题】He wrote an on a poem by Tagore.
A.
composition
B.
thesis
C.
essay
D.
article
E.
paper
【单选题】关于女性生殖器的自然防御功能,错误的是
A.
子宫内膜周期性剥脱可及时消除宫腔的感染
B.
子宫内膜形成的 “粘液栓”堵塞子宫颈管
C.
阴道自净作用主要通过使阴道 PH 值升高发挥作用
D.
宫颈阴道部表面覆以复层鳞状上皮，具有较强的抗感染力
【单选题】(亚马逊)(单选)关于亚马逊专业卖家月租费,以下说法错误的是? ()
A.
北美站:39.99 美金
B.
欧洲站:45 英镑
C.
日本站:4900 日元
D.
澳洲站:49.95 澳元
【简答题】When Baker wrote the essay, he thought his teacher wouldn’t like it.
【单选题】—Has he finished his essay? —I don't know. He______it this morning.
A.
has written
B.
was writing
C.
wrote
D.
had written
相关题目：
参考解析：
知识点：
题目纠错 0
发布
