不能生O型血孩子的父母血型应该是?xml:namespace>
A、A型和O型
B、B型和O型
C、AB型和O型
D、A型B型
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控制一种遗传性状的基因性质显性的,且位于常染色体上,这种遗传方式称为 ( )遗传。?xml:namespace>
某男孩色盲,其父母,外祖父母,祖母均正常.其祖父色盲.此男孩的致病基因是从__________(基因型为________)传给__________(基因型为__________),再传给男孩(基因型为_____________)
I would ( ) it if we had a bigger house, but we are not able to buy one.
A. share
B. creat
C. prefer
He likes to rub shoulders with the students, letting them ( ) his happiness.
A. prefer
B. share
C. imagine