皮皮学，免费搜题
登录
搜题
【单选题】
测定食品中灰分时,何种情况会使测定结果偏A.
加热后坩埚未加盖，即在空气中放凉
B.
坩埚未完全，即称重
C.
加热温度不稳定
D.
灼烧温度偏高
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】A．essential B．elementary C．necessary D．principal
【单选题】How is the principal amount of an interest-only loan repaid?
A.
The principal is forgiven over the loan period so does not have to be repaid.
B.
The principal is repaid in equal increments and included in each loan payment.
C.
The principal is repaid in a lump sum at the end of the loan period.
D.
The principal is repaid in equal annual payments.
【单选题】There is _______ wrong with your watch. Let me check it.
A.
something
B.
everything
C.
nothing
D.
anything
【单选题】The coefficient vector of the principal component expression is the eigenvector of _______________.
A.
the covariance matrix of original variables
B.
the covariance matrix of principal components
【单选题】The principal-Agent problem is mainly because
A.
it is costly and hard for the principal to monitor the agent.
B.
the principal and agent have different incentives
C.
some of the principals have the incentive to take a free-ride of other principals' monitoring
D.
all of the above
相关题目：