皮皮学，免费搜题
登录
搜题
【判断题】
腔肠动物的体壁由外胚层、中胶层、内胚层三层细胞构成。A.
正确
B.
错误
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】革兰染色所用试剂的顺序是
A.
稀释复红—碘液—酒精—结晶紫
B.
结晶紫—酒精—碘液—稀释复红
C.
结晶紫—碘液—酒精—稀释复红
D.
稀释复红—酒精—结晶紫—碘液
E.
稀释复红—结晶紫—碘液—酒精
【单选题】No. 2345 Name. Lily Only for student From April 1 st To June 30 th , 2012 If the card is found, please return to any Stage coach driver. The card is used for________.
A.
taking a taxi
B.
travelling by train
C.
taking a bus
D.
entering the college
【简答题】(请将以下段落翻译成中文)The regulations make it safer for you to use your credit card for shopping on the Internet or over the phone. If someone else makes dishonest use of your credit card , you can cancel the ...
【简答题】Tony is very disappointed _______ ?Tony is very disappointed _______ the results of the exam. A) with B) for C) toward D) on
【简答题】Please yze the features of the following EST paragraph. Pictures can be stored in the camera’s internal memory (about 14 MB) or on the Secure Digital (SD) memory card. If no memory card has been i...
【单选题】革兰染色所用试剂的顺序是
A.
复红→碘液→酒精→结晶紫
B.
结晶紫→酒精→碘液→复红
C.
结晶紫→碘液→酒精→复红
D.
复红→酒精→结晶紫→碘液
E.
石炭酸复红→3%盐酸酒精→美兰
【单选题】革兰染色所用试剂的顺序是
A.
稀释复红→碘液→酒精→结晶紫
B.
结晶紫→酒精→碘液→稀释复红
C.
结晶紫→碘液→酒精→ 稀释复红
D.
稀释复红→酒精→结晶紫→碘液
【单选题】革兰染色所用试剂的顺序是
A.
稀释复红、碘液、乙醇、结晶紫
B.
结晶紫、乙醇、碘液、稀释复红
C.
结晶紫、碘液、乙醇、稀释复红
D.
稀释复红、乙醇、结晶紫、碘液
E.
稀释复红、结晶紫、碘液、乙醇
【简答题】Side A No. 293083 Student Bus Card Name: Lilian From: April 1st, 2012 To: June 30th, 2012 Price: £ 180 College: University of Chiches...
【单选题】Tony was very angry and _______the ball away.
A.
throw
B.
threw
C.
has thrown
D.
has been thrown
相关题目：
【单选题】革兰染色所用试剂的顺序是
A.
复红→碘液→酒精→结晶紫
B.
结晶紫→酒精→碘液→复红
C.
结晶紫→碘液→酒精→复红
D.
复红→酒精→结晶紫→碘液
E.
石炭酸复红→3%盐酸酒精→美兰