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【判断题】
土壤污染物质的分析结果通常用mg/kg为单位表示，为了反映土壤实际状况，这里的土壤kg重量应为包括含水量的新鲜样品的重量。()A.
正确
B.
错误
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【单选题】Stem Cell Therapy May Help Repair the Heart According to scientists in the USA, stem cell therapy may one day be able to repair the hearts of people with heart failure. Researchers at Pittsburgh Unive...
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】A stem is the base form. of a word which cannot be further yzed without total loss of identity.
【简答题】请编写一个既适合8086/8088又适合于80386的宏，该宏可实现两个32位存储器操作数相加，结果存入第三个32位存储器。
【多选题】Adult stem cells include:
A.
hematopoietic stem cells
B.
mesenchymal stem cells
C.
neural stem cells
D.
epithelial stem cells
【简答题】如图，△ABC内接于⊙O，AB是⊙O的直径，延长AB到D，连结CD。请你结合图形，编写一道题。要求：再补充两个已知条件，并写出在所有已知条件下得出的一个结论。 例如：“补充已知：OB=BD，CD切⊙O于点C，求证：∠A=∠D ” “补充已知：（ ）求证：（ ）”
【单选题】Which of the following are not stem cells?
A.
muscle cells
B.
neuron stem cells
C.
iPSCs
D.
bone marrow stem cells
【单选题】Based on the differentiation potential, which type of stem cells do hematopoietic stem cells belong to?
A.
totipotent stem cells
B.
unipotent stem cells
C.
multipotent stem cells
D.
iPS cells
【单选题】Which of the following statements is CORRECT about the stem cell research?
A.
Embryonic stem cells are changeable even in the late stage.
B.
Growing new hearts in a patient needs stem cells from an adult donator.
C.
Research findings by a Japanese scientist might end the controversy.
D.
President Obama agrees with George Bush concerning the issue.
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【简答题】A stem is the base form. of a word which cannot be further yzed without total loss of identity.