Once they decided to have children, MiShel and Carl Meissner tackled the next big issue: Should they try to have a girl It was no small matter. MiShel’s brother had become blind from a hereditary (遗传的) condition in his early 20s, and the Meissners had learned that the condition is a (1) passed from mothers to sons. If they had a boy, he would have a 50 per cent chance of having the condition. A girl would be (2) .
The British couple’s (3) about gender selection led them to Virginia, US where a new sperm (精子)-separation technique, called MicroSort, was under (4) . When MiShel became pregnant, she gave birth to a daughter. They will try to have a second daughter using the technique later this year.
This is not only a (5) effective way to select a child’s gender. It also brings a host of ethical (伦理的) and practical considerations—especially for the majority of families who
A. genetic
B. overlapped
C. impressive
D. unaffected
E. perpetually
F. investigation
G. inquiries
H. feats
I. disorder
J. gropes
K. experimental
L. seemingly
M. elicit
N. nonmedical
Once they decided to have children, MiShel and Carl Meissner tackled the next big issue: Should they try to have a girl It was no small matter. MiShel’s brother had become blind from a hereditary (遗传的) condition in his early 20s, and the Meissners had learned that the condition is a (1) passed from mothers to sons. If they had a boy, he would have a 50 per cent chance of having the condition. A girl would be (2) .
The British couple’s (3) about gender selection led them to Virginia, US where a new sperm (精子)-separation technique, called MicroSort, was under (4) . When MiShel became pregnant, she gave birth to a daughter. They will try to have a second daughter using the technique later this year.
This is not only a (5) effective way to select a child’s gender. It also brings a host of ethical (伦理的) and practical considerations—espe
A. genetic
B. overlapped
C. impressive
D. unaffected
E. perpetually
F. investigation
G. inquiries
H. feats
I. disorder
J. gropes
K. experimental
L. seemingly
M. elicit
N. nonmedical
| In 1999 when MiShel and Carl Meissner
decided to have children, they tackled the next big issue: Should they try to
have a girl It was no small matter. MiShel’s brother had become blind from a
hereditary condition in his early 20s, and the Meissners had learned that the
condition is a disorder passed from mothers to sons. If they had a boy, he
would have a 50 per cent chance of having the condition. A girl would be
unaffected. The British couple’s inquiries about sex selection led them to
Virginia, US, where a new sperm-separation technique, called MicroSort, was
experimental at the time. When MiShel became pregnant she gave birth to a
daughter. Now they will try to have a second daughter using the same
technique. The technique separates sperm into two groups—those that carry the X-chromosome (染色体) producing a female baby and t A. Because they might give birth to a blind baby. B. Because Carl might pass his family’s disease to his son. C. Because the boy might become blind when he grows up. D. Because they wanted a daughter to balance their family. [填空题]You’d better have your car _____ at once, or you will be late for Professor’s lecture.
[填空题]Once you have a health care directive, the health providers ______.
[单项选择]Once you have developed a good study habit, try to keep it______.
A. living B. alive C. live D. lively 我来回答: 提交
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