皮皮学，免费搜题
登录
搜题
【单选题】
Which one of the following is the most accurate description of the structural differences between gram-positive bacteria and gram-negative bacteria ?A.
gram-positive bacteria have a thick peptidoglycan layer, whereas gram-negative bacteria have a thin layer
B.
gram-positive bacteria have an outer lipid-rich membrane, whereas gram-negative bacteria do not
C.
gram-positive bacteria form a sex pilus that mediates conjugation ,whereas gram-negative bacteria do not
D.
gram-positive bacteria have plasmids, whereas gram-negative bacteria do not
E.
gram-positive bacteria have capsules, whereas gram-negative bacteria do not
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
【简答题】药品标准制定时所选择的检验方法应遵循的原则不包括（ ）
【单选题】The Longest Canal in the world is ________.
A.
Panama Canal
B.
Rideau Canal
C.
the Grand Canal
D.
The MIDI canal
【单选题】The optic disc
A.
located in the bland part of the retina
B.
is formed by the optic nerve pierces the retina
C.
is sensitive to the light
D.
fovea centralis is its center
【单选题】S1: How many important Canals are there all over the world? S2: Two biggest canals: Panama Canal, and Suez Canal. Q: Which Canal is there in America? 0102dh107
A.
Suez Canal.
B.
Panama Canal.
C.
Panama and Suez Canal.
D.
Americal Canal.
相关题目：