皮皮学,免费搜题
登录
搜题
【简答题】
胶原酶在上皮类细胞原代培养时经常使用,胶原酶作用的对象是(),因此不容易对细胞产生损伤。胶原酶的使用浓度为0.1~0.3mg/L或200000U/L,作用的最佳pH为()。
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】法国的蓝白红三色国旗分别代表()
A.
自由、和平、博爱
B.
平等、博爱、和平
C.
自由、平等、博爱
D.
平等、博爱、自由
查看完整题目与答案
【单选题】The school play (校园剧) is very______ .So I like it. [ ]
A.
boring
B.
interest
C.
interesting
D.
difficult
查看完整题目与答案
【单选题】which company is better at writing reports?
A.
Muller
B.
Peterson
查看完整题目与答案
【简答题】简要说明电子密码本模式的基本原理及缺点
查看完整题目与答案
【单选题】Initial reports from the second quarter show that our company sales have increased by 10 percent since the ______year.
A.
consecutive
B.
previous
C.
following
D.
subsequent
查看完整题目与答案
【单选题】- Why does Tom like playing football? _ _ .
A.
Becauseit's boring.
B.
Soit's relaxing.
C.
So it's difficult
D.
Because it’s interesting
查看完整题目与答案
【单选题】车站、列车车厢、空调系统、( )等直接与乘客接触的服务设施应定期清洁、消毒。
A.
客服中心
B.
车控室
C.
警务室
D.
公共卫生间
查看完整题目与答案
【单选题】They had _______ computers together, so they had to overcome these _______ a network. [ ]
A.
difficulty to link, difficulty to create
B.
difficulty linking, difficulty creating
C.
difficulties linking, difficulties creating
D.
difficulty linking, difficulties to create
查看完整题目与答案
【单选题】Which of the following reports directly to the owners of the company (assume the company is a public company)?
A.
CFO
B.
CEO
C.
board of directors
D.
audit committee
查看完整题目与答案
【单选题】下列哪一项是目前共享经济模式新的推手。
A.
手机支付
B.
资源集中
C.
大数据
D.
个人爱好
查看完整题目与答案
相关题目:
【单选题】法国的蓝白红三色国旗分别代表()
A.
自由、和平、博爱
B.
平等、博爱、和平
C.
自由、平等、博爱
D.
平等、博爱、自由
查看完整题目与答案
【单选题】The school play (校园剧) is very______ .So I like it. [ ]
A.
boring
B.
interest
C.
interesting
D.
difficult
查看完整题目与答案
【单选题】which company is better at writing reports?
A.
Muller
B.
Peterson
查看完整题目与答案
【简答题】简要说明电子密码本模式的基本原理及缺点
查看完整题目与答案
【单选题】Initial reports from the second quarter show that our company sales have increased by 10 percent since the ______year.
A.
consecutive
B.
previous
C.
following
D.
subsequent
查看完整题目与答案
【单选题】- Why does Tom like playing football? _ _ .
A.
Becauseit's boring.
B.
Soit's relaxing.
C.
So it's difficult
D.
Because it’s interesting
查看完整题目与答案
【单选题】车站、列车车厢、空调系统、( )等直接与乘客接触的服务设施应定期清洁、消毒。
A.
客服中心
B.
车控室
C.
警务室
D.
公共卫生间
查看完整题目与答案
【单选题】They had _______ computers together, so they had to overcome these _______ a network. [ ]
A.
difficulty to link, difficulty to create
B.
difficulty linking, difficulty creating
C.
difficulties linking, difficulties creating
D.
difficulty linking, difficulties to create
查看完整题目与答案
【单选题】Which of the following reports directly to the owners of the company (assume the company is a public company)?
A.
CFO
B.
CEO
C.
board of directors
D.
audit committee
查看完整题目与答案
【单选题】下列哪一项是目前共享经济模式新的推手。
A.
手机支付
B.
资源集中
C.
大数据
D.
个人爱好
查看完整题目与答案