The prochordal plate marks the site of the future
A.umbilical cord
B.heart
C.mouth
D.anus
- · 有6位网友选择 A,占比60%
- · 有2位网友选择 B,占比20%
- · 有1位网友选择 C,占比10%
- · 有1位网友选择 D,占比10%
A.umbilical cord
B.heart
C.mouth
D.anus
A、Selling inventory at a profit.
B、Writing off a bad debt.
C、Paying a payable in cash.
D、Increasing the bank overdraft to purchase a non-current asset.
A、Mini-skirt
B、Cheongsam
C、Long robe
D、Shirt
A、adhere to the collagen fiber under the endothelium.
B、release of ADP and TXA2 to promote more platelets to aggregate.
C、release TXA2 to enhance vascular spam.
D、release of PF3 to promote coagulation.
A、Transgenic approaches do not work in humans.
B、Transgenic approaches in humans are unethical.
C、Transgenic animals have genes that are more prone to mutation than humans do.
D、All the above
A、Extraembryonic somatic mesoderm and cytotrophoblast
B、Extraembryonic somatic mesoderm and syncytiotrophoblast
C、Extraembryonic somatic mesoderm, cytotrophoblast, and syncytiotrophoblast
D、Extraembryonic visceral mesoderm, cytotrophoblast, and syncytiotrophoblast
A、Between the cytotrophoblast and syncytiotrophoblast
B、Within the extraembryonic mesoderm
C、Within the hypoblast
D、Within the epiblast
A、Epiblast only
B、Epiblast and hypoblast
C、Ectoderm and endoderm
D、Epiblast, mesoderm, and hypoblast
A、Epiblast and hypoblast
B、Ectoderm and endoderm
C、Ectoderm,mesoderm,and endoderm
D、Epiblast,mesoderm,and hypoblast
A、Neurulation
B、Gastrulation
C、Craniocaudal folding
D、Lateral folding
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