SECTION B PASSAGES
Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.
听力原文: (16[C])"We need plenty more seals", Oolak said as they parted. He added, "But you (15[A])don't shoot seal in water now for they axe hard to get".
Two hours passed, during which Bob had heard Oolak's rifle crack four or five times. (17[A])Boh decided to look for his companion and rejoin him. He climbed an ice pinnacle to look.
It was a peaceful scene that met Bob's gaze. White ice stretched before him with little streams flowing across its surface. The low hills and open plains of ice were all bathed in golden sunlight.
He did not see Oolak, but he became aware that the dogs had been howling for some time. It dawned on him that the entire team was in an uproar.
When he glanced his way to see what the trouble was, his heart almost froze. Walking toward them was an immense whitish form, sleek head hanging low -- a polar bear!
The bear smelled a freshly killed seal which Oolak had dragged to the sled, and it was this that he was seeking. To the clamor of the dogs he paid no more attention than if it were the buzzing of a fly. In his entire life the huge beast had never known fear, for the polar bear is the ruler of the ice. He knows no enemies.
According to the passage, it is not easy to get seal ______.
A.in water
B.on the ice
C.in the polar region
D.on the pinnacle
第1题
急性淋巴细胞白血病原始细胞的过氧化物酶染色阳性率小于
A.0.01
B.0.02
C.0.03
D.0.04
E.0.05
第2题
急性淋巴细胞白血病原始细胞的过氧化物酶染色阳性率小于
A.1%
B.2%
C.3%
D.4%
E.5%
第5题
急淋白血病原始细胞的过氧化物酶染色阳性率
A、<1%
B、<3%
C、<5%
D、<8%
E、<10%
第7题
骨髓原始细胞过氧化物酶染色阴性反应的是
A、急性髓细胞白血病M2型
B、急性淋巴细胞白血病
C、急性单核细胞白血病
D、慢性粒细胞白血病
E、急性髓细胞白血病M3型
第9题
急性髓系白血病(AML-M1)原始细胞的过氧化物酶染色阳性率大于
A.0.01
B.0.02
C.0.03
D.0.04
E.0.05
第10题
属于急性淋巴细胞白血病的化学染色特点的是
A、过氧化物酶染色阳性的原始细胞<3%
B、过碘酸-雪夫反应阳性的原始淋巴细胞<20%
C、酸性磷酸酶染色B细胞阳性
D、非特异性酯酶染色阳性
E、碱性磷酸酶染色积分值减低
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