logo - 刷刷题
下载APP
【单选题】

Answer the question(s) below based on the information in the following table Country Goods A B X 3 9 Y 4 2 (numbers indicate hours of labor per unit of output) 5) Refer to the table above. Country A has absolute advantage in

A.
A) Good X.
B.
B) Good Y.
C.
C) Neither X nor Y.
D.
D) Both X and Y.
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】[Single-choice question] The nature of DNA denaturation means:

A.
The phosphate diester bond in the molecule breaks
B.
Polynucleotide chain depolymerization
C.
DNA molecule from superhelix to double stranded helix
D.
The hydrogen bond between the complementary bases breaks

【多选题】以下有关 AWS IoT中Device Shadow服务的说法,正确的有?

A.
设备可以将自己的状态信息发布到 Device Shadow中去,供应用程序或其他设备使用
B.
只有当设备与 AWS IoT处于连接状态时,用户才可以往Device Shadow中发布更新的状态信息
C.
Device Shadow用于存储和检索设备的当前状态信息
D.
Device Shadow设备影子是一种JSON文档