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【简答题】
填空。 Dr Spear is a doctor living in  London.  She decided one morning to 1 her cat away. Dr Spear thought that it was much 2 for the animal to live in the 3 . 4 she put Mimi in her car and drove more than 100 kilometres out of the city to her brother's house and left the cat with him. A month later she was shocked to 5 that Mimi was no longer 6 ! Then one night Dr Spear heard a 7 at her bedroom window.  Unable  to  sleep  she 8 bed and was surprised  to  see a thin cat looking 9 ____. She chased the cat  away and went back to bed. Then, just as she was about to fall asleep, something landed on her bed. 'It gave me a 10 fright(惊吓)and then I realized it was Mimi! ' (     )1. A. put (     )2. A. higher (     )3. A. country (     )4. A. But (     )5. A. think (     )6. A. alive (     )7. A. noise (     )8. A. made the (     )9. A. at (     )10.A. soft B. leave B. better B. city B. Because B. see B. there B. story B. put away the B. up B. real C. give C. more dangerous C. house C. Or C. hear C. here C. laugh C. got out of C. down C. strange D. ask D. harder D. car D. So D. ask D. pretty D. voice D. looked at the D. in D. bit
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【简答题】当溶液的pH越接近等电点,氨基酸净电荷越____,离子移动速度越____。
【单选题】The spot price of the market index is $900. After 3 months the market index is priced at $920. The annual rate of interest on treasuries is 4.8% (0.4% per month). The premium on the long put, with an ...
A.
$15.00 gain
B.
$15.00 loss
C.
$6.90 gain
D.
$6.90 loss
【单选题】在中性点直接接地系统中发生单相接地时,其中性点的电位为( )
A.
接近于零
B.
接近于相电压
C.
接近于线电压
【单选题】We offer ____ goods and services to our customers worldwide.
A.
brand
B.
branded
C.
branding
D.
brands
【单选题】假设沙漠里有一种仙人掌,它会同时受到两种生物——野猪和寄生虫的“攻击”。其中,野猪会吃那些刺少的仙人掌,而寄生虫则喜欢寄生在刺多的仙人掌上。自然选择下,仙人掌的刺会处于一个中间的密度,从而同时避免了野猪和寄生虫的“进攻”。请问这种自然选择模式是?
A.
定向选择
B.
稳定选择
C.
平衡选择
D.
间断选择
【单选题】患者,男,25岁,独居,反复发作喘息10余年,近3天来气短气喘加重、胸闷入院,查体:双肺散在哮鸣音,诊断为支气管哮喘,下列对预防哮喘复发的指导措施中正确的是( )
A.
应避免使用色甘酸钠等抗炎药物
B.
避免进食鱼肉和鸡蛋等可能诱发哮喘的食物
C.
在室内摆放少量花草,有利于净化空气
D.
适当养宠物,消除孤独,有利于愉悦心情
E.
循序渐进地加大运动强度动,增强体质
【判断题】鱼类第IV时相卵母细胞细胞核会发生极化。
A.
正确
B.
错误
【简答题】设 a , b , c 是向量,在下列命题中,正确的是______. ① a ? b = b ? c ,则 a = c ; ②( a ? b )? c = a ?( b ? c ); ③| a ? b |=| a |?| b | ④| a + b | 2 =( a + b ) 2 ; ⑤若 a ∥ b , b ∥ c ,则 a ∥ c ; ⑥若 a ⊥ b , b ⊥ c ,则 a ⊥ c .
【单选题】We offer these goods subject _________ their being unsold on receipt of your order:
A.
in
B.
with
C.
on
D.
To
【单选题】be conscious of
A.
清醒
B.
理解
C.
意识到;知道
D.
厌恶
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