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【多选题】
增值税一般纳税人销售自产的下列货物，可选择按简易征收办法依照6%征收率计算缴纳增值税的有( )。A.
用购买的石料生产的石灰
B.
用动物毒素制成的生物制品
C.
以水泥为原料生产的水泥混凝土
D.
县级以下小型水力发电站生产的电力
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皮皮学刷刷变学霸
举一反三
【简答题】熟读理解课文,完成 Tasks 1 Text A Hepatitis B Hepatitis is an inflammation of the liver. It may be caused by drugs, alcohol use, or certain medical conditions. But in most cases, it's caused by a virus that i...
【单选题】up to now, the best measurement to prevent hepatitis B virus is as follows:
A.
Isolation of patients
B.
Injection of hepatitis B virus vaccine
C.
Passive immunization with gamma globulin
D.
Do a good job in excrement management and water source protection
E.
Exterminate mosquitoes and flies
【单选题】Which statement about hepatitis is not true ?
A.
Hepatitis C is a higher risk for people who are drug abusers
B.
Patients with acute hepatitis may experience no symptoms at all
C.
Hepatitis causes irreversible damage to the liver
D.
Patients with hepatitis B are at increased risk to acquire hepatitis D
【多选题】设举重比赛有 3 个裁判,一个主裁判和两个副裁判。只有当两个或两个以上裁判判明成功,并且其中必有一个是主裁判时,表明此次举重成功。对该逻辑关系表述正确的是( )
A.
应用题一定要有题设，如该应用题中设主裁判为变量A,副裁判分别为B和C,1表示裁判判明成功，0表示裁判判明失败;表示举重成功与否为Y,1表示成功，0表示失败。在此基础上才可列真值表。
B.
根据答案A中题设和应用题题意列出的真值表为：
C.
根据答案A中题设，与应用题题意所表述的逻辑关系一致的逻辑表达式为：Y=AB+AC
D.
根据答案A中题设，与应用题题意所表述的逻辑关系一致的逻辑图为：
【单选题】Today, all babies usually get vaccines ___ the hepatitis B virus, but there is not yet a vaccination for hepatitis C.
A.
against
B.
again
C.
to
【简答题】如下图所示是小华做“估测大气压的值”的实验示意图．（6分） ⑴请把下列实验步骤补充完整． A．把注射器的活塞推至注射器筒的底端，排尽筒内的空气，然后用橡皮帽封住注射器的小孔； B．用细尼龙绳拴住注射器活塞的颈部，使绳的一端与弹簧测力计的挂钩相连，然后水平向右慢慢拉动注射器筒．当注射器中的活塞刚开始滑动时，记下_________，即等于大气对活塞的压力F； C．用刻度尺测出注射器的_________...
【单选题】Can hepatitis B virus be contained inside our body after acute _____ hepatitis is cured?
A.
renal
B.
icteric
C.
cardiac
D.
costal
【简答题】Hepatitis B is __________ of the liver caused by a virus.
【单选题】Although hepatitis A is a short-term illness that goes away completely, hepatitis B and C can turn ___ serious long-term or chronic illnesses for some people.
A.
into
B.
for
C.
on
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