The assembly line significantly _________the assembly time per vehicle and _______the profit margin. A: decreased; increased B: increased; decreased C: increased；increased D: decreased；decreased

Arterial blood pressure may be increased by() A: decreased sympathetic tone B: Venodilatation C: decreased parasympathetic tone D: decreased vasopressin hormone release E: adrenoceptor blocking drugs

The main mechanism of metabolic acidosis in the late stage of chronic renal failure is ( ) A: Decreased non-volatile acid excretion due to decreased CFR function B: Decreased excretion of H+ and ammonia production in renal tubules C: Decreased HCO3- reabsorption threshold in renal tubules D: Effects of hyperkalemia E: Increased lactic acid production

Which of the following is an essential feature of hypovolemic shock? A: A．Arterial blood pressure does not decrease B: B．Reduced peripheral resistance C: C．Decreased cardiac output D: D．Increased urine output

Which symptoms NOT often occur in the early stage of shock ? () A: Blood pressure decreased B: anus temperature decreased C: agitate and restless D: coma E: Weak and rapid pulse

The consumer surplus of electric toothbrushes can be decreased by:

减少了三分之二，下面的英语表述那个正确？ A: increased by two thirds B: decreased by two thirds C: increased to two thirds D: decreased to two thirds

Which one is the main mechanism of inflammatory edema? ( ) A: Decreased plasma colloid osmotic pressure B: Increased capillary permeability C: Lymphatic obstruction D: Increased ANP E: Decreased GFR

减少了五分之三，下面的英语表述哪个正确？ A: increased by three fifths B: decreased by three fifths C: increased to three fifths D: decreased to three fifths

The natural rate of unemployment will most likely increase if A: the minimum wage rate is decreased B: unemployment benefits are increased C: monetary growth is decreased D: income taxes are increased E: all of the above