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【单选题】
中孕期母血清学产前筛指通过中孕期母体血清甲胎蛋白、血清人绒毛膜促性腺激素、血清人绒毛膜促性腺激素游离 β 亚基、抑制素A和非结合雌三醇指标结合孕妇的年龄、体重、孕、病史等进行综合风险评估,得出胎儿罹患( )的风险度。A.
唐氏综合征、13三体综合征和开放性神经管缺陷
B.
唐氏综合征、18三体综合征和神经管缺陷
C.
唐氏综合征、18三体综合征和开放性神经管缺陷
D.
唐氏综合征、21三体综合征和开放性神经管缺陷
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举一反三
【单选题】Li Ming ______ get up late when he was a child, but now he ______ getting up early. [ ]
A.
got used to, used to
B.
used to, gets used to
C.
used to, used to
D.
gets used to, used to
【单选题】Tony got up late this morning but he took a taxi and got to school ______. [ ]
A.
in time
B.
in fact
C.
in short
D.
in a hurry
【单选题】The reason ______he was late was _____he got up late
A.
which , because
B.
why , that
C.
that, that
D.
why ,because
【单选题】He got up very late, ______ he was late for school. [ ]
A.
and
B.
but
C.
because
D.
so
【单选题】单项选择。 He ______ up early every morning. But he ______ up late this morning. [ ]
A.
get, got
B.
gets, gets
C.
got, gets
D.
gets, got
【单选题】The reason ______ he missed the train was ______ got up late.
A.
because, he
B.
because, that he
C.
why, he
D.
why, that he
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