种间竞争：__________ competition A: interspecific B: parasitic C: pesticide D: zone

Malaria is an infectious parasitic disease that can be either acute or chronic and is frequently A: repeating B: terminal C: debilitating D: recurrent

Malaria is all infectious parasitic disease that can be either acute or chronic and is frequent______. A: repeating B: terminal C: debilitating D: recurrent

In low frequency range, drop in gain is caused by ( ) A: bypass capacitors B: coupling capacitors C: transistor's parasitic capacitors D: bias resistors

5．The switching losses are comprised of the on-state losses, and the losses in the transition states.: A: the parasitic losses B: the dielectric losses C: the hysteresis losses D: the off-state losses

White blood cells patrol the body searching for potential sources of infection and destroy invading pathogens, such as ________, ________, ________, and ________. A: viruses B: bacteria C: fungi D: parasitic microorganisms

() are free-living organisms that are capable of becoming parasitic<br/>if placed in a situation conductive to such a mode. A: opportunistic parasite B: Obligatove parasites C: Endoparasite D: Facultative parasites

The main natural factor affecting the prevalence of parasitic diseases is () A: temperature and humidity B: Only related to humidity C: independent of temperature D: It has nothing to do with rainfall

Which<br/>of the following is not true about the five parasitic diseases to be<br/>destroyed in our country () A: malaria B: schistosomiasis C: ascariasis D: leishmaniasis E: hookworm<br/>disease

Schistosomiasis, a parasitic disease transmitted by aquatic snails, also seems to be affected by climate.由水生螺传播的一种称为吸血虫病的寄生虫病似乎也会受到气候的影响。