【单选题】Which statement is wrong about the use case approach?
A.
Use cases specify the functionality of the system.
B.
Use cases can be used for different basic activities in the requirements phase.
C.
Each use case consists of many normal scenarios and many exceptional scenarios.
D.
Use case occurs when a user interacts with the system for achieving some goal.
【判断题】每个子代 DNA 分子中均保留一条亲代 DNA 链和一条新合成的 DNA 链,这种复制方式称之为半保留复制。
【单选题】There's ______with my bike.I'm sorry I'm late.
【单选题】Which of the precautions for insulin use is wrong?
A.
Insulin should be kept cold
B.
Avoid concussion when extracting liquid
C.
Frequent replacement of subcutaneous injection sites
D.
Inhalation of regular insulin before mixed injection
E.
Use is to pay attention to the expiry date of drugs
【单选题】Doctors often use drugs such as endorphins to treat patientsA.Right B.Wrong ###
A.
Doctors often use drugs such as endorphins to treat patients A.Right
【判断题】每个子代DNA分子中均保留一条亲代DNA链和一条新合成的DNA链,这种复制方式称之为半保留复制。
【判断题】每个子代DNA分子中均保留一条亲代DNA链和一条新合成的DNA链,这种复制方式称之为半保留复制。
【单选题】I'm sorry I'm late .There is ________ with my bike.
【单选题】What's wrong with the woman?
A.
She calls the wrong number.
B.
She doesn't know how to use a telephone.
C.
She is using a broken (打破,中止) telephone.