【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】将甲基橙指示剂加到一无色水溶液中,溶液呈黄色,该溶液的酸碱性为
【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
【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】将甲基橙指示剂加到一无色水溶液中,溶液呈黄色,该溶液的酸碱性为
【单选题】I'm sorry I'm late .There is ________ with my bike.
【单选题】将甲基橙指示剂加到一无色水溶液中 , 溶液呈黄色 , 该溶液的酸碱性为
【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.